Peeples, Molly S., Weinberg, David H., Davé, Romeel, Fardal, Mark A., Katz, Neal
We examine the impact of gas pressure on the transverse coherence of high-redshift (2
Peeples, Molly S., Weinberg, David H., Davé, Romeel, Fardal, Mark A., Katz, Neal
In the low density intergalactic medium (IGM) that gives rise to the Lyman-alpha forest, gas temperature and density are tightly correlated. The velocity scale of thermal broadening and the Hubble...
The Nature of Sub-millimetre Galaxies in Cosmological Hydrodynamic Simulations (2009)
Davé, Romeel, Finlator, Kristian, Oppenheimer, Benjamin D., Fardal, Mark, Katz, Neal, Kereš, Dušan, ...
We study the nature of rapidly star-forming galaxies at z=2 in cosmological hydrodynamic simulations, and compare their properties to observations of sub-millimetre galaxies (SMGs). We identify...
Binary Quasars at High Redshift II: Sub-Mpc Clustering at z ~ 3-4 (2009)
Shen, Yue, Hennawi, Joseph F., Shankar, Francesco, Myers, Adam D., Strauss, Michael A., Djorgovski, S. G., ...
We present measurements of the small-scale (0.1
A Search for Oxygen in the Low-Density Lyman-alpha Forest Using the Sloan Digital Sky Survey (2009)
Pieri, Matthew M., Frank, Stephan, Mathur, Smita, Weinberg, David H., York, Donald G., Oppenheimer, Benjamin D.
We use 2167 Sloan Digital Sky Survey (SDSS) quasar spectra to search for low-density oxygen in the Intergalactic Medium (IGM). Oxygen absorption is detected on a pixel-by-pixel basis by its...
Baryon Acoustic Oscillations in the Sloan Digital Sky Survey Data Release 7 Galaxy Sample (2009)
Percival, Will J., Reid, Beth A., Eisenstein, Daniel J., Bahcall, Neta A., Budavari, Tamas, Frieman, Joshua A., ...
The spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) galaxy sample represents the final set of galaxies observed using the original SDSS target selection criteria. We analyse the...
Reid, Beth A., Percival, Will J., Eisenstein, Daniel J., Verde, Licia, Spergel, David N., Skibba, Ramin A., ...
We present the power spectrum of the reconstructed halo density field derived from a sample of Luminous Red Galaxies (LRGs) from the Sloan Digital Sky Survey Seventh Data Release (DR7). The halo...
Lyman-alpha Emission From Cosmic Structure I: Fluorescence (2009)
Kollmeier, Juna A., Zheng, Zheng, Davé, Romeel, Gould, Andrew, Katz, Neal, Miralda-Escudé, Jordi, ...
We present predictions for the fluorescent Lyman-alpha emission signature arising from photoionized, optically thick structures in Smoothed Particle Hydrodynamic (SPH) cosmological simulations of a...
The Seventh Data Release of the Sloan Digital Sky Survey (2009)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...
This paper describes the Seventh Data Release of the Sloan Digital Sky Survey (SDSS), marking the completion of the original goals of the SDSS and the end of the phase known as SDSS-II. It includes...
Clustering of Low-Redshift (z (2009)
Ross, Nicholas P., Shen, Yue, Strauss, Michael A., Berk, Daniel E. Vanden, Connolly, Andrew J., Richards, Gordon T., ...
We present measurements of the quasar two-point correlation function, \xi_{Q}, over the redshift range z=0.3-2.2 based upon data from the SDSS. Using a homogeneous sample of 30,239 quasars with...
Cosmological Constraints from the SDSS maxBCG Cluster Catalog (2009)
Rozo, Eduardo, Wechsler, Risa H., Rykoff, Eli S., Annis, James T., Becker, Matthew R., Evrard, August E., ...
We use the abundance and weak lensing mass measurements of the SDSS maxBCG cluster catalog to simultaneously constrain cosmology and the richness--mass relation of the clusters. Assuming a flat...
A quantitative explanation of the observed population of Milky Way satellite galaxies (2009)
Koposov, Sergey E., Yoo, Jaiyul, Rix, Hans-Walter, Weinberg, David H., Macciò, Andrea V., Miralda-Escudé, Jordi
We revisit the well known discrepancy between the observed number of Milky Way (MW) dwarf satellite companions and the predicted population of cold dark matter (CDM) sub-halos, in light of the dozen...
Keres, Dusan, Katz, Neal, Dave, Romeel, Fardal, Mark, Weinberg, David H.
We compare the properties of galaxies that form in a large volume cosmological simulation without strong feedback to observations at z=0. We confirm previous findings that models without strong...
The seventh data release of the sloan digital sky survey (2009)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, An, Deokkeun, ...
Shankar, Francesco, Crocce, Martin, Miralda-Escude', Jordi, Fosalba, Pablo, Weinberg, David H.
We investigate the characteristic radiative efficiency \epsilon, Eddington ratio \lambda, and duty cycle P_0 of high-redshift active galactic nuclei (AGN), drawing on measurements of the AGN...
Quasar Clustering from SDSS DR5: Dependences on Physical Properties (2008)
Shen, Yue, Strauss, Michael A., Ross, Nicholas P., Hall, Patrick B., Lin, Yen-Ting, Richards, Gordon T., ...
Using a homogenous sample of 38,208 quasars with a sky coverage of $4000 {\rm deg^2}$ drawn from the SDSS Data Release Five quasar catalog, we study the dependence of quasar clustering on luminosity,...
Simha, Vimal, Weinberg, David H., Dave, Romeel, Gnedin, Oleg Y., Katz, Neal, Keres, Dusan
We examine the accretion and merger histories of central and satellite galaxies in a smoothed particle hydrodynamics (SPH) cosmological simulation that resolves galaxies down to 7e9 M[Sun]. Most...
Halo Occupation Distribution Modeling of Clustering of Luminous Red Galaxies (2008)
Zheng, Zheng, Zehavi, Idit, Eisenstein, Daniel J., Weinberg, David H., Jing, Yipeng
We perform Halo Occupation Distribution (HOD) modeling to interpret small-scale and intermediate-scale clustering of 35,000 luminous early-type galaxies and their cross-correlation with a reference...
Galaxies in a simulated $\Lambda$CDM Universe I: cold mode and hot cores (2008)
Kereš, Dušan, Katz, Neal, Fardal, Mark, Dave, Romeel, Weinberg, David H.
We study the formation of galaxies in a (50 Mpc/h)^3 cosmological simulation (2x288^3 particles), evolved using the entropy conserving SPH code Gadget-2. Most of the baryonic mass in galaxies of all...
Extending Recovery of the Primordial Matter Power Spectrum (2008)
Yoo, Jaiyul, Weinberg, David H., Tinker, Jeremy L., Zheng, Zheng, Warren, Michael S.
The shape of the primordial matter power spectrum Plin(k) encodes critical information on cosmological parameters. At large scales, the observable galaxy power spectrum Pobs(k) is expected to follow...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Prieto, Carlos Allende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the sloan digital sky survey (2008)
Adelman-McCarthy, Jennifer K., Agüros, Marcel A., Allam, Sahar S., Allende Prieto, Carlos, Anderson, Kurt S. J., Anderson, Scott F., ...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
The sixth data release of the Sloan Digital Sky Survey (2008)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Prieto, Carlos Alende, Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Sixth Data Release of the Sloan Digital Sky Survey. With this data release, the imaging of the northern Galactic cap is now complete. The survey contains images and...
Photoionization, Numerical Resolution, And Galaxy Formation (2007)
David Weinberg Ohio, David H. Weinberg, Lars Hernquist, Neal Katz
Using cosmological simulations that incorporate gas dynamics and gravitational forces, we investigate the influence of photoionization by an ultraviolet radiation background on the formation of...
A Study of Quasar Clustering at (2007)
From The Palomar, Andrew W. Stephens, Donald P. Schneider, Maarten Schmidt, James E. Gunn, David H. Weinberg
The quest for structure indicators at earlier and earlier times in the evolution of the universe has led to the search for objects with ever higher redshifts. The Palomar Transit Grism Survey has...
Testing Cosmological Models Against The Abundance Of Damped Lyman-Alpha Absorbers (2007)
Jeffrey Gardner, Neal Katz, David H. Weinberg, Lars Hernquist
We calculate the number of damped Lyff absorbers expected in various popular cosmological models as a function of redshift and compare our predictions with observed abundances. The Press-Schechter...
Large-scale structure in COBE-normalized cold dark matter cosmogonies (2007)
Shaun Cole, David H. Weinberg, Carlos S. Frenk, Bharat Ratra
We study the clustering of the mass distribution in cold dark matter models using large cosmological N-body simulations. We investigate spatially-flat models with a cosmological constant and...
The Population Of Damped Lyman-Alpha And Lyman Limit Systems In The Cold Dark Matter Model (2007)
Jeffrey Gardner, Neal Katz, Lars Hernquist, David H. Weinberg
Lyman limit and damped Lyff absorption systems probe the distribution of collapsed, cold gas at high redshift. Numerical simulations that incorporate gravity and gas dynamics can predict the...
Shankar, Francesco, Weinberg, David H., Miralda-Escude', Jordi
We construct evolutionary models of the populations of AGN and supermassive black holes, in which the black hole mass function grows at the rate implied by the observed luminosity function, given...
Tinker, Jeremy L., Conroy, Charlie, Norberg, Peder, Patiri, Santiago G., Weinberg, David H., Warren, Michael S.
We use measurements of the projected galaxy correlation function w_p and galaxy void statistics to test whether the galaxy content of halos of fixed mass is systematically different in low density...
The Sloan Digital Sky Survey Quasar Catalog IV. Fifth Data Release (2007)
Schneider, Donald P., Hall, Patrick B., Richards, Gordon T., Strauss, Michael A., Berk, Daniel E. Vanden, Anderson, Scott F., ...
We present the fourth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog contains 77,429 objects; this is an increase of over 30,000 entries since the previous edition. The...
The Most Massive Black Holes in the Universe: Effects of Mergers in Massive Galaxy Clusters (2007)
Yoo, Jaiyul, Miralda-Escude, Jordi, Weinberg, David H., Zheng, Zheng, Morgan, Christopher W.
Recent observations support the idea that nuclear black holes grew by gas accretion while shining as luminous quasars at high redshift, and they establish a relation of the black hole mass with the...
Cattaneo, Andrea, Blaizot, Jérémy, Weinberg, David H., Keres, Dusan, Colombi, Stephane, Davé, Romeel, ...
The fifth data release of the sloan digital sky survey (2007)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
The Sloan Digital Sky Survey Quasar Catalog. IV. Fifth Data Release (2007)
Schneider, Donald P., Hall, Patrick B., Richards, Gordon T., Strauss, Michael A., Vanden Berk, Daniel E., Anderson, Scott F., ...
We present the fourth edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog contains 77,429 objects; this is an increase of over 30,000 entries since the previous edition. The...
The Tully-Fisher relation and its residuals for a broadly selected sample of galaxies (2007)
Pizagno, James, Prada, Francisco, Weinberg, David H., Rix, Hans-Walter, Pogge, Richard W., Grebel, Eva K., ...
We measure the relation between galaxy luminosity and disk circular velocity (the Tully-Fisher [TF] relation), in the g, r, i, and z bands, for a broadly selected sample of galaxies from the Sloan...
Dark matter halos of disk galaxies: constraints from the Tully-Fisher relation (2007)
Gnedin, Oleg Y., Weinberg, David H., Pizagno, James, Prada, Francisco, Rix, Hans-Walter
We investigate structural properties of dark matter halos of disk galaxies, using a well-defined sample of 81 disk-dominated galaxies from the SDSS redshift survey. We model the mass-velocity (TF)...
The fifth data release of the Sloan Digital Sky Survey (2007)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...
The Fifth Data Release of the Sloan Digital Sky Survey (2007)
Adelman-McCarthy, Jennifer K., Agueeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...
The Fifth Data Release of the Sloan Digital Sky Survey (2007)
Adelman-McCarthy, Jennifer K., Agueeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...
The fifth data release of the Sloan Digital Sky Survey (2007)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fifth Data Release (DR5) of the Sloan Digital Sky Survey (SDSS). DR5 includes all survey quality data taken through 2005 June and represents the completion of the SDSS-I...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Measuring the matter density using baryon oscillations in the SDSS (2006)
Percival, Will J., Nichol, Robert C., Eisenstein, Daniel J., Weinberg, David H., Fukugita, Masataka, Pope, Adrian C., ...
We measure the cosmological matter density by observing the positions of baryon acoustic oscillations in the clustering of galaxies in the Sloan Digital Sky Survey (SDSS). We jointly analyse the main...
The shape of the SDSS DR5 galaxy power spectrum (2006)
Percival, Will J., Nichol, Robert C., Eisenstein, Daniel J., Frieman, Joshua A., Fukugita, Masataka, Loveday, Jon, ...
We present a Fourier analysis of the clustering of galaxies in the combined Main galaxy and Luminous Red Galaxy (LRG) Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5) sample. The aim of our...
The Tully-Fisher Relation and Its Residuals for a Broadly Selected Sample of Galaxies (2006)
Pizagno, James, Prada, Francisco, Weinberg, David H., Rix, Hans-Walter, Pogge, Richard W., Grebel, Eva K., ...
We measure the relation between galaxy luminosity and disk circular velocity (the Tully-Fisher [TF] relation), in the g, r, i, and z-bands, for a broadly selected sample of galaxies from the Sloan...
Dark Matter Halos of Disk Galaxies: Constraints from the Tully-Fisher Relation (2006)
Gnedin, Oleg Y., Weinberg, David H., Pizagno, James, Prada, Francisco, Rix, Hans-Walter
We investigate structural properties of dark matter halos of disk galaxies in LCDM cosmology, using a well-defined sample of 81 disk-dominated galaxies from the SDSS redshift survey. We model the...
Cattaneo, Andrea, Blaizot, Jeremy, Weinberg, David H., Colombi, Stephane, Dave, Romeel, Devriendt, Julien, ...
We compare the galaxy population of an SPH simulation to those predicted by the GalICS semi-analytic model and a stripped down version without supernova and AGN feedback. The SPH simulation and the...
On the Evolutionary History of Stars and their Fossil Mass and Light (2006)
Fardal, Mark A., Katz, Neal, Weinberg, David H., Dav'e, Romeel
The total extragalactic background radiation can be an important test of the global star formation history (SFH). Using direct observational estimates of the SFH, along with standard assumptions...
Baryon Dynamics, Dark Matter Substructure, and Galaxies (2006)
Weinberg, David H., Colombi, Stephane, Davé, Romeel, Katz, Neal
By comparing a collisionless cosmological N-body simulation (DM) to an SPH simulation with the same initial conditions, we investigate the correspondence between the dark matter subhalos produced by...
On the Luminosity Dependence of the Galaxy Pairwise Velocity Dispersion (2006)
Tinker, Jeremy L., Norberg, Peder, Weinberg, David H., Warren, Michael S.
(Abridged) We make predictions for the pairwise velocity dispersion (PVD) of galaxies with models that are constrained to match the projected correlation function and luminosity function of galaxies...
Cosmic Voids and Galaxy Bias in the Halo Occupation Framework (2006)
Tinker, Jeremy L., Weinberg, David H., Warren, Michael S.
(Abridged) We investigate the power of void statistics to constrain galaxy bias and the amplitude of dark matter fluctuations. We use the halo occupation distribution (HOD) framework to describe the...
Berlind, Andreas A., Frieman, Joshua A., Weinberg, David H., Blanton, Michael R., Warren, Michael S., Abazajian, Kevork, ...
We identify galaxy groups and clusters in volume-limited samples of the SDSS redshift survey, using a redshift-space friends-of-friends algorithm. We optimize the friends-of-friends linking lengths...
The fourth data release of the sloan digital sky survey (2006)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
The fourth data release of the sloan digital sky survey (2006)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
The fourth data release of the sloan digital sky survey (2006)
Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
The fourth data release of the Sloan Digital Sky Survey (2006)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...
The fourth data release of the Sloan Digital Sky Survey (2006)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
The fourth data release of the Sloan Digital Sky Survey (2006)
Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., Annis, James, ...
This paper describes the Fourth Data Release of the Sloan Digital Sky Survey (SDSS), including all survey-quality data taken through 2004 June. The data release includes five-band photometric data...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Breaking the Degeneracies Between Cosmology and Galaxy Bias (2005)
Zheng, Zheng, Weinberg, David H.
Adopting the framework of the Halo Occupation Distribution (HOD), we investigate the ability of galaxy clustering measurements to simultaneously constrain cosmological parameters and galaxy bias....
From Galaxy-Galaxy Lensing to Cosmological Parameters (2005)
Yoo, Jaiyul, Tinker, Jeremy L., Weinberg, David H., Zheng, Zheng, Katz, Neal, Davé, Romeel
Galaxy-galaxy lensing measures the mean excess surface density DS(r) around a sample of lensing galaxies. We develop a method for combining DS(r) with the galaxy correlation function xi_gg(r) to...
Building Galaxies with Simulations (2005)
Davé, Romeel, Finlator, Kristian, Hernquist, Lars, Katz, Neal, Kereš, Dušan, Papovich, Casey, ...
We present an overview of some of the issues surrounding current models of galaxy formation, highlighting recent insights obtained from cosmological hydrodynamic simulations. Detailed examination of...
Dark Energy Studies: Challenges to Computational Cosmology (2005)
Annis, James, Castander, Francisco J., Evrard, August E., Frieman, Joshua A., Gaztanaga, Enrique, Jain, Bhuvnesh, ...
The ability to test the nature of dark mass-energy components in the universe through large-scale structure studies hinges on accurate predictions of sky survey expectations within a given world...
Constraining Dark Energy with the Dark Energy Survey: Theoretical Challenges (2005)
Annis, James, Bridle, Sarah, Castander, Francisco J., Evrard, August E., Fosalba, Pablo, Frieman, Joshua A., ...
The Dark Energy Survey (DES) will use a new imaging camera on the Blanco 4-m telescope at CTIO to image 5000 square degrees of sky in the South Galactic Cap in four optical bands, and to carry out...
Dark Energy: The Observational Challenge (2005)
Nearly all proposed tests for the nature of dark energy measure some combination of four fundamental observables: the Hubble parameter H(z), the distance-redshift relation d(z), the age-redshift...
Mapping the Large Scale Structure of the Universe (2005)
In a large scale view of the universe, galaxies are the basic unit of structure. A typical bright galaxy may contain 100 billion stars and span tens of thousands of light years, but the empty...
Galaxy Merger Statistics and Inferred Bulge-to-Disk Ratios in Cosmological SPH Simulations (2005)
Maller, Ariyeh, Katz, Neal, Keres, Dusan, Dave, Romeel, Weinberg, David H.
We construct merger trees for galaxies identified in a cosmological hydrodynamical simulation and use them to characterize predicted merger rates as a function of redshift, galaxy mass, and merger...
Probing Galaxy Formation with He II Cooling Lines (2005)
Yang, Yujin, Zabludoff, Ann I., Davé, Romeel, Eisenstein, Daniel J., Pinto, Philip A., Katz, Neal, ...
Using high resolution cosmological simulations, we study hydrogen and helium gravitational cooling radiation. We focus on the HeII cooling lines, which arise from gas with a different temperature...
Black Hole Masses and Eddington Ratios at 0.3 (2005)
Kollmeier, Juna A., Onken, Christopher A., Kochanek, Christopher S., Gould, Andrew, Weinberg, David H., Dietrich, Matthias, ...
We study the distribution of Eddington luminosity ratios, L_bol/L_edd, of active galactic nuclei (AGNs) discovered in the AGN and Galaxy Evolution Survey (AGES). We combine H-beta, MgII, and CIV line...
Topology Analysis of the Sloan Digital Sky Survey: I. Scale and Luminosity Dependences (2005)
Park, Changbom, Choi, Yun-Young, Vogeley, Michael, Gott III, J. Richard, Kim, Juhan, Hikage, Chiaki, ...
We measure the topology of volume-limited galaxy samples selected from a parent sample of 314,050 galaxies in the Sloan Digital Sky Survey(SDSS), which is now complete enough to describe the fully...
Dark Matter and Stellar Mass in the Luminous Regions of Disk Galaxies (2005)
Pizagno, James, Prada, Francisco, Weinberg, David H., Rix, Hans-Walter, Harbeck, Daniel, Grebel, Eva K., ...
We investigate the correlations among stellar mass (M_*), disk scale length (R_d), and rotation velocity at 2.2 disk scale lengths (V_2.2) for a sample of 81 disk-dominated galaxies (disk/total >=...
Bouche, Nicolas, Gardner, Jeffrey P., Weinberg, David H., Katz, Neal, Dave, Romeel, Lowenthal, James D.
[Abridged] We test the reliability of a method to measure the mean halo mass of Damped Ly-alpha absorbers (DLAs). The method is based on measuring the ratio of the cross-correlation between DLAs and...
Redshift-Space Distortions with the Halo Occupation Distribution I: Numerical Simulations (2005)
Tinker, Jeremy L., Weinberg, David H., Zheng, Zheng
We show how redshift-space distortions of the galaxy correlation function or power spectrum can constrain the matter density parameter Omega_m and the linear matter fluctuation amplitude sigma_8. We...
The third data release of the sloan digital sky survey (2005)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
The Third Data Release of the Sloan Digital Sky Survey (2005)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
Bouché, Nicolas, Gardner, Jeffrey P., Katz, Neal, Weinberg, David H., Davé, Romeel, Lowenthal, James D.
Dark matter and stellar mass in the luminous regions of disk galaxies (2005)
Pizagno, James, Prada, Francisco, Weinberg, David H., Rix, Hans-Walter, Harbeck, Daniel, Grebel, Eva K., ...
We investigate the correlations among stellar mass (M*), disk scale length (Rd), and rotation velocity at 2.2 disk scale lengths (V2.2) for a sample of 81 disk-dominated galaxies (disk/total>=0.9)...
The third data release of the Sloan Digital Sky Survey (2005)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...
The third data release of the Sloan Digital Sky Survey (2005)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...
The third data release of the Sloan Digital Sky Survey (2005)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
This paper describes the Third Data Release of the Sloan Digital Sky Survey (SDSS). This release, containing data taken up through 2003 June, includes imaging data in five bands over 5282 deg²,...
On the Mass-to-Light Ratio of Large Scale Structure (2004)
Tinker, Jeremy L., Weinberg, David H., Zheng, Zheng, Zehavi, Idit
We examine the dependence of the mass-to-light (M/L) ratio of large-scale structure on cosmological parameters, in models that are constrained to match observations of the projected galaxy...
Rotation Velocities of Two Low Luminosity Field Galaxies (2004)
Pizagno, James, Blanton, Michael R., Weinberg, David H., Bahcall, Neta A., Brinkmann, Jon
We present H-alpha rotation curves of two low luminosity field galaxies with r-band absolute magnitudes M_r=-13.9^{+0.8}_{-0.5} and M_r=-14.7^{+0.3}_{-0.2} (for h=0.7; the large error bars reflect...
Zheng, Zheng, Berlind, Andreas A., Weinberg, David H., Benson, Andrew J., Baugh, Carlton M., Cole, Shaun, ...
The halo occupation distribution (HOD) describes the relation between galaxies and dark matter at the level of individual dark matter halos. The properties of galaxies residing at the centers of...
Abazajian, Kevork, Zheng, Zheng, Zehavi, Idit, Weinberg, David H., Frieman, Joshua A., Berlind, Andreas A., ...
We use the projected correlation function w_p(r_p) of a volume-limited subsample of the Sloan Digital Sky Survey (SDSS) main galaxy redshift catalogue to measure the halo occupation distribution...
How Do Galaxies Get Their Gas? (2004)
Keres, Dusan, Katz, Neal, Weinberg, David H., Dave, Romeel
We examine the temperature history of gas accreted by forming galaxies in SPH simulations. About half the gas shock heats to roughly the virial temperature of the galaxy potential well before...
Interpreting the Relationship Between Galaxy Luminosity, Color and Environment (2004)
Berlind, Andreas A., Blanton, Michael R., Hogg, David W., Weinberg, David H., Davé, Romeel, Eisenstein, Daniel J., ...
We study the relationship between galaxy luminosity, color, and environment in a cosmological simulation of galaxy formation. We compare the predicted relationship with that found for SDSS galaxies...
The Lyman-alpha Forest Power Spectrum from the Sloan Digital Sky Survey (2004)
McDonald, Patrick, Seljak, Uros, Burles, Scott, Schlegel, David J., Weinberg, David H., Shih, David, ...
We measure the power spectrum, P_F(k,z), of the transmitted flux in the Ly-alpha forest using 3035 high redshift quasar spectra from the Sloan Digital Sky Survey. This sample is almost two orders of...
Explaining Low Redshift Quasar Evolution (2004)
Steed, Adam, Weinberg, David H.
We have developed a flexible framework for constructing physical models of quasar evolution that can incorporate a wide variety of observational constraints, such as multi-wavelength quasar...
Cosmological Parameters from Eigenmode Analysis of Sloan Digital Sky Survey Galaxy Redshifts (2004)
Pope, Adrian C., Matsubara, Takahiko, Szalay, Alexander S., Blanton, Michael R., Eisenstein, Daniel J., Gray, Jim, ...
We present estimates of cosmological parameters from the application of the Karhunen-Loeve transform to the analysis of the 3D power spectrum of density fluctuations using Sloan Digital Sky Survey...
The Second Data Release of the Sloan Digital sky survey (2004)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
Padmanabhan, Nikhil, Schlegel, David J., Carr, Michael A., Gunn, James E., Rockosi, Constance M., ...
On departures from a power law in the galaxy correlation function (2004)
Zehavi, Idit, Weinberg, David H., Zheng, Zheng, Berlind, Andreas A., Frieman, Joshua A., Scoccimarro, Román, ...
The Second Data Release of the Sloan Digital sky survey (2004)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
Finkbeiner, Douglas P., Padmanabhan, Nikhil, Schlegel, David J., Carr, Michael A., Gunn, James E., Rockosi, Constance M., ...
The Sloan Digital Sky Survey (SDSS) mosaic camera and telescope have obtained five-band optical-wavelength imaging near the Galactic plane outside of the nominal survey boundaries. These additional...
The second data release of the Sloan Digital Sky Survey (2004)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg(2) of five-band (ugriz) imaging data with photometry for...
The second data release of the Sloan Digital Sky Survey (2004)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Kurt S. J., Anderson, Scott F., ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its Second Data Release. This data release consists of 3324 deg(2) of five-band (ugriz) imaging data with photometry for...
Accretion Driven Evolution of Quasars and Black Holes: Theoretical Models (2003)
Steed, Adam, Weinberg, David H.
We present a flexible framework for constructing physical models of quasar evolution that can incorporate a variety of observational constraints, such as multi-wavelength luminosity functions,...
Bright Lyman Break Galaxy Candidates in the Sloan Digital Sky Survey First Data Release (2003)
Bentz, Misty C., Osmer, Patrick S., Weinberg, David H.
{Abridged} We report the discovery of six compact, starburst galaxy candidates with redshifts 2.3 < z < 2.8 and r-band magnitudes 19.8-20.5 in the Quasar Catalog of the Sloan Digital Sky Survey First...
Photoionization Feedback in Low--Mass Galaxies at High Redshift (2003)
Dijkstra, Mark, Haiman, Zoltan, Rees, Martin J., Weinberg, David H.
The cosmic ultraviolet (UV) ionizing background impacts the formation of dwarf galaxies in the low-redshift universe (z=3) by suppressing gas infall into galactic halos with circular velocities up to...
Anderson, Scott F., Voges, Wolfgang, Margon, Bruce, Trümper, Joachim, Agüeros, Marcel A., Boller, Thomas, ...
Many open questions in X-ray astronomy are limited by the relatively small number of objects in uniform optically-identified samples, especially when rare subclasses are considered, or subsets...
On Departures From a Power Law in the Galaxy Correlation Function (2003)
Zehavi, Idit, Weinberg, David H., Zheng, Zheng, Berlind, Andreas A., Frieman, Joshua A., Scoccimarro, Roman, ...
We measure the projected correlation function w_p(r_p) from the Sloan Digital Sky Survey for a flux-limited sample of 118,000 galaxies and for a volume limited subset of 22,000 galaxies with absolute...
The Lyman-alpha Forest as a Cosmological Tool (2003)
Weinberg, David H., Dav'e, Romeel, Katz, Neal, Kollmeier, Juna A.
We review recent developments in the theory of the Lyman-alpha forest and their implications for the role of the forest as a test of cosmological models. Simulations predict a relatively tight...
Kauffmann, Guinevere, Heckman, Timothy M., White, Simon D. M., Charlot, Stéphane, Tremonti, Christy, Brinchmann, Jarle, ...
The first data release of the sloan digital sky survey (2003)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
Anderson, Scott F., Voges, Wolfgang, Margon, Bruce, Trümper, Joachim, Agüeros, Marcel A., Boller, Thomas, ...
The first data release of the sloan digital sky survey (2003)
Abazajian, Kevork, Adelman-McCarthy, Jennifer K., Agüeros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
The first data release of the Sloan Digital Sky Survey (2003)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...
The first data release of the Sloan Digital Sky Survey (2003)
Abazajian, Kevork N., Adelman-McCarthy, Jennifer K., Agueros, Marcel A., Allam, Sahar S., Anderson, Scott F., Annis, James, ...
The Sloan Digital Sky Survey (SDSS) has validated and made publicly available its First Data Release. This consists of 2099 deg2 of five-band (u, g, r, i, z) imaging data, 186,240 spectra of...
Lyman Alpha Absorber Correlations and the Bias of the Lyman Alpha Forest (2002)
Davé, Romeel, Katz, Neal, Weinberg, David H.
Lyman alpha absorber correlations contain information about the underlying density distribution associated with a particular class of absorbers. As such, they provide an opportunity to independently...
The Galaxy Proximity Effect in the Lyman-alpha Forest (2002)
Kollmeier, Juna A., Weinberg, David H., Dave', Romeel, Katz, Neal
Hydrodynamic cosmological simulations predict that the average opacity of the Ly-alpha forest should increase in the neighborhood of galaxies because galaxies form in dense environments. Recent...
Galaxy Clustering and Galaxy Bias in a Lambda-CDM Universe (2002)
Weinberg, David H., Dav'e, Romeel, Katz, Neal, Hernquist, Lars
We investigate galaxy clustering and galaxy-mass correlations in the LCDM cosmological model using a large volume SPH simulation. For the most part, the predicted biases between galaxies and dark...
The Halo Occupation Distribution and the Physics of Galaxy Formation (2002)
Berlind, Andreas A., Weinberg, David H., Benson, Andrew J., Baugh, Carlton M., Cole, Shaun, Davé, Romeel, ...
The halo occupation distribution (HOD) describes the bias between galaxies and dark matter by specifying (a) the probability P(N|M) that a halo of virial mass M contains N galaxies of a particular...
The overdensities of galaxy environments as a function of luminosity and color (2002)
Hogg, David W., Blanton, Michael R., Eisenstein, Daniel J., Gunn, James E., Schlegel, David J., Zehavi, Idit, ...
We study the mean environments of galaxies in the Sloan Digital Sky Survey as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in $8 h^{-1} \mathrm{Mpc}$...
X-ray Observations of the Warm-Hot Intergalactic Medium (2002)
Mathur, Smita, Weinberg, David H., Chen, Xuelei
We present Chandra observations that provide the most direct evidence to date for the pervasive, moderate density, shock-heated intergalactic medium predicted by leading cosmological scenarios. We...
The Galaxy Luminosity Function and Luminosity Density at Redshift z=0.1 (2002)
Blanton, Michael R., Hogg, David W., Brinkmann, J., Connolly, Andrew J., Csabai, Istvan, Bahcall, Neta A., ...
Using a catalog of 147,986 galaxy redshifts and fluxes from the Sloan Digital Sky Survey (SDSS) we measure the galaxy luminosity density at z=0.1 in five optical bandpasses corresponding to the SDSS...
Lyman Break Galaxies and the Lyman-alpha Forest (2002)
Kollmeier, Juna A., Weinberg, David H., Dave', Romeel, Katz, Neal
We use hydrodynamic simulations to predict correlations between Lya forest absorption and galaxies at redshift z~3. The probability distribution function (PDF) of Lya flux decrements shifts...
How Do Galaxies Get Their Gas? (2002)
Katz, Neal, Keres, Dusan, Dave, Romeel, Weinberg, David H.
Not the way one might have thought. In hydrodynamic simulations of galaxy formation, some gas follows the traditionally envisioned route, shock heating to the halo virial temperature before cooling...
Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample (2002)
Strauss, Michael A., Weinberg, David H., Lupton, Robert H., Narayanan, Vijay K.
We describe the algorithm that selects the main sample of galaxies for spectroscopy in the Sloan Digital Sky Survey from the photometric data obtained by the imaging survey. Galaxy photometric...
Two-Dimensional Topology of the Sloan Digital Sky Survey (2002)
Hoyle, Fiona, Vogeley, Michael S., Gott III, J. Richard, Blanton, Michael, Tegmark, Max, Weinberg, David H., ...
We present the topology of a volume-limited sample of 11,884 galaxies, selected from an apparent-magnitude limited sample of over 100,000 galaxies observed as part of the Sloan Digital Sky Survey...
X-Ray Scaling Relations of Galaxy Groups in a Hydrodynamic Cosmological Simulation (2002)
Davé, Romeel, Katz, Neal, Weinberg, David H.
We examine the scalings of X-ray luminosity, temperature, and dark matter or galaxy velocity dispersion for galaxy groups in an LCDM cosmological simulation, which incorporates gravity, gas dynamics,...
Chen, Xuelei, Weinberg, David H., Katz, Neal, Dave', Romeel
Using a hydrodynamic simulation of a LCDM universe, we investigate the "X-ray forest" absorption imprinted on the spectra of background quasars by the intervening intergalactic medium (IGM). In...
Do Distinct Cosmological Models Predict Degenerate Halo Populations? (2002)
Zheng, Zheng, Tinker, Jeremy L., Weinberg, David H., Berlind, Andreas A.
Using cosmological N-body simulations, we investigate the influence of the matter density parameter Omega_m and the linear theory power spectrum P(k) on statistical properties of the dark matter halo...
Studying Structure Formation with the Sloan Digital Sky Survey (2002)
I review recent SDSS results related to galaxies and large scale structure, including: (1) discovery of coherent, unbound structures in the stellar halo, (2) demonstration that Pal 5 has tidal tails...
Sloan Digital Sky Survey: Early data release (2002)
Stoughton, Chirs, Lupton, Rpbert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott, Castander, Francsico J., ...
The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of 10 6 galaxies, 100,000...
Sloan Digital Sky Survey: early data release (2002)
Stoughton, Chris, Lupton, Robert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott M., Castander, Francisco J., ...
The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of ≈ 106 galaxies,...
Sloan Digital Sky Survey: early data release (2002)
Stoughton, Chris, Lupton, Robert H., Bernardi, Mariangela, Blanton, Michael R., Burles, Scott M., Castander, Francisco J., ...
The Sloan Digital Sky Survey (SDSS) is an imaging and spectroscopic survey that will eventually cover approximately one-quarter of the celestial sphere and collect spectra of ≈ 106 galaxies,...
Kujat, Jens, Linn, Angela M., Scherrer, Robert J., Weinberg, David H.
The dark energy that appears to produce the accelerating expansion of the universe can be characterized by an equation of state p=w\rho with w
Conti, Alberto, Ryden, Barbara S., Weinberg, David H.
(Abridged) Motivated by forthcoming data from the Sloan Digital Sky Survey, we present a theoretical framework that can be used to interpret Principal Component Analysis (PCA) of disk galaxy...
Dark Matter Properties and Halo Central Densities (2001)
Alam, S. M. Khairul, Bullock, James S., Weinberg, David H.
Using an analytic model calibrated against numerical simulations, we calculate the central densities of dark matter halos in a ``conventional'' cold dark matter model with a cosmological constant...
Berlind, Andreas A., Weinberg, David H.
We investigate galaxy bias in the framework of the ``Halo Occupation Distribution'' (HOD), which defines the bias of a population of galaxies by the conditional probability P(N|M) that a dark matter...
Sub-mm Galaxies in Cosmological Simulations (2001)
Fardal, Mark A., Katz, Neal, Weinberg, David H., Davé, Romeel, Hernquist, Lars
We study the predicted sub-mm emission from massive galaxies in a Lambda-CDM universe, using hydrodynamic cosmological simulations. Assuming that most of the emission from newly formed stars is...
The Infuence of Omega_baryon on High-Redshift Structure (2001)
Gardner, Jeffrey P., Katz, Neal, Hernquist, Lars, Weinberg, David H.
We analyze high-redshift structure in three hydrodynamic simulations that have identical initial conditions and cosmological parameters and differ only in the value of the baryon density parameter,...
Galaxy Clustering in Early SDSS Redshift Data (2001)
Collaboration, SDSS, Zehavi, Idit, Blanton, Michael R., Frieman, Joshua A., Weinberg, David H., Mo, Houjun J., ...
We present the first measurements of clustering in the Sloan Digital Sky Survey (SDSS) galaxy redshift survey. Our sample consists of 29,300 galaxies with redshifts 5,700 km/s < cz < 39,000 km/s,...
The growth of galaxies in cosmological simulations of structure formation (2001)
Murali, Chigurupati, Katz, Neal, Hernquist, Lars, Weinberg, David H., Dave, Romeel
We use hydrodynamic simulations to examine how the baryonic components of galaxies are assembled, focusing on the relative importance of mergers and smooth accretion in the formation of ~L_* systems....
Galaxy Number Counts from the Sloan Digital Sky Survey Commissioning Data (2001)
Yasuda, Naoki, Fukugita, Masataka, Narayanan, Vijay K., Lupton, Robert H., Strateva, Iskra, Strauss, Michael A., ...
We present bright galaxy number counts in five broad bands ($u', g', r', i', z'$) from imaging data taken during the commissioning phase of the Sloan Digital Sky Survey (SDSS). The counts are derived...
Metal Enrichment of the Intergalactic Medium in Cosmological Simulations (2001)
Aguirre, Anthony, Hernquist, Lars, Schaye, Joop, Katz, Neal, Weinberg, David H., Gardner, Jeffrey
Observations have established that the diffuse intergalactic medium (IGM) at z ~ 3 is enriched to ~0.1-1% solar metallicity and that the hot gas in large clusters of galaxies (ICM) is enriched to...
Towards a Precise Measurement of Matter Clustering: Lyman-alpha Forest Data at Redshifts 2-4 (2000)
Croft, Rupert A. C., Weinberg, David H., Bolte, Mike, Burles, Scott, Hernquist, Lars, Katz, Neal, ...
We measure the filling factor, correlation function, and power spectrum of transmitted flux in a large sample of Lya forest spectra, comprised of 30 Keck HIRES spectra and 23 Keck LRIS spectra. We...
Hydrodynamic Simulation of the Cosmological X-ray Background (2000)
Croft, Rupert A. C., Di Matteo, Tiziana, Dav'e, Romeel, Hernquist, Lars, Katz, Neal, Fardal, Mark A., ...
(Abridged) We use a hydrodynamic simulation of a LambdaCDM model to predict the extragalactic X-ray background (XRB), focussing on emission from the intergalactic medium (IGM). We also include X-rays...
Biased Galaxy Formation And Measurements Of Beta (2000)
Berlind, Andreas A., Narayanan, Vijay K., Weinberg, David H.
Measurements of the cosmological density parameter Omega using techniques that exploit the gravity-induced motions of galaxies constrain, in linear perturbation theory, the degenerate parameter...
Hierarchical galaxy formation and substructure in the Galaxy's stellar halo (2000)
Bullock, James S., Kravtsov, Andrey V., Weinberg, David H.
We develop an explicit model for the formation of the stellar halo from tidally disrupted, accreted dwarf satellites in the cold dark matter (CDM) framework, focusing on predictions testable with the...
Baryons in the Warm-Hot Intergalactic Medium (2000)
Davé, Romeel, Cen, Renyue, Ostriker, Jeremiah P., Bryan, Greg L., Hernquist, Lars, Katz, Neal, ...
Approximately 30-40% of all baryons in the present day universe reside in a warm-hot intergalactic medium (WHIM), with temperatures between 10^5
Cooling Radiation and the Lyman-alpha Luminosity of Forming Galaxies (2000)
Fardal, Mark A., Katz, Neal, Gardner, Jeffrey P., Hernquist, Lars, Weinberg, David H., Davé, Romeel
We examine the cooling radiation from forming galaxies in hydrodynamic simulations of the LCDM model (cold dark matter with a cosmological constant), focusing on the Ly-alpha line luminosities of...
High-Redshift Galaxies in Cold Dark Matter Models (2000)
Weinberg, David H., Hernquist, Lars, Katz, Neal
We use hydrodynamic cosmological simulations to predict the star formation properties of high-redshift galaxies (z=2-6) in five variants of the inflationary cold dark matter scenario, paying...
Quasar Clustering and the Lifetime of Quasars (2000)
Martini, Paul, Weinberg, David H.
Although the population of luminous quasars rises and falls over a period of 10^9 years, the typical lifetime of individual quasars is uncertain by several orders of magnitude. We show that quasar...
Reionization and the abundance of galactic satellites (2000)
Bullock, James S., Kravtsov, Andrey V., Weinberg, David H.
One of the main challenges facing standard hierarchical structure formation models is that the predicted abundance of galactic subhalos with circular velocities of 10-30 km/s is an order of magnitude...
Phillips, John, Weinberg, David H., Croft, Rupert A. C., Hernquist, Lars, Katz, Neal, Pettini, Max
We combine COBE-DMR measurements of cosmic microwave background anisotropy with a recent measurement of the mass power spectrum at redshift z=2.5 from Lya forest data to derive constraints on...
Berlind, Andreas A., Narayanan, Vijay K., Weinberg, David H.
We show that a regression of unsmoothed peculiar velocity measurements against peculiar velocities predicted from a smoothed galaxy density field leads to a biased estimate of the cosmological...
Gardner, Jeffrey P., Katz, Neal, Hernquist, Lars, Weinberg, David H.
We use hydrodynamic cosmological simulations to study damped Lyman-alpha (DLA) and Lyman limit (LL) absorption at redshifts z=2-4 in five variants of the cold dark matter scenario. Our standard...
Reconstruction Analysis of the IRAS Point Source Catalog Redshift Survey (1999)
Narayanan, Vijay K., Weinberg, David H., Branchini, E., Frenk, C. S., Maddox, S., Oliver, S., ...
We present the results of reconstruction analysis of the galaxy distribution in a spherical region of radius 50 Mpc/h centered on the Local Group, as mapped by the IRAS Point Source Catalog Redshift...
The Nature of Lyman Break Galaxies in Cosmological Hydrodynamic Simulations (1999)
Davé, Romeel, Gardner, Jeffrey P., Hernquist, Lars, Katz, Neal, Weinberg, David H.
What type of objects are being detected as $z\sim 3$ "Lyman break galaxies"? Are they predominantly the most massive galaxies at that epoch, or are many of them smaller galaxies undergoing a...
Evolution of Clustering and Bias in a Lambda-CDM Universe (1999)
Davé, Romeel, Hernquist, Lars, Katz, Neal, Weinberg, David H.
We determine the evolution from $z=3\to 0$ of the galaxy and mass correlation functions and bias factor in a $50h^{-1}$Mpc $\Lambda$CDM hydrodynamic simulation with $10h^{-1}$kpc resolution. The mass...
Berlind, Andreas A., Narayanan, Vijay K., Weinberg, David H.
Measurements of the cosmological density parameter (Omega) using techniques that exploit the gravity-induced motions of galaxies yield, in linear perturbation theory, the degenerate parameter...
Theoretical Modeling of the High Redshift Galaxy Population (1999)
Weinberg, David H., Dave', Romeel, Gardner, Jeffrey P., Hernquist, Lars, Katz, Neal
We review theoretical approaches to the study of galaxy formation, with emphasis on the role of hydrodynamic simulations in modeling the high redshift galaxy population. We present new predictions...
Topology from the Simulated Sloan Digital Sky Survey (1999)
Colley, Wesley N., Gott, J. Richard, Weinberg, David H., Park, Changbom, Berlind, Andreas A.
We measure the topology (genus curve) of the galaxy distribution in a mock redshift catalog designed to resemble the upcoming Sloan Digital Sky Survey (SDSS). The catalog, drawn from a large N-body...
Locally Biased Galaxy Formation and Large Scale Structure (1998)
Narayanan, Vijay K., Berlind, Andreas, Weinberg, David H.
We examine the influence of the morphology-density(MD) relation and a wide range of simple models for biased galaxy formation on statistical measures of large scale structure. We contrast the...
Okamura, Sadanori, Yasuda, Naoki, Shimasaku, Kazuhiro, Yagi, Masafumi, Weinberg, David H.
We show that the growth curves of galaxies can be used to determine their bulge and disk parameters and bulge-to-total luminosity ratios, in addition to their conventional asymptotic magnitudes,...
Cosmology with the Lyman-alpha Forest (1998)
Weinberg, David H., Burles, Scott, Croft, Rupert A. C., Dave', Romeel, Gomez, Gilberto, Hernquist, Lars, ...
We outline the physical picture of the high-redshift Ly-alpha forest that has emerged from cosmological simulations, describe statistical characteristics of the forest that can be used to test...
Weinberg, David H., Croft, Rupert A. C., Hernquist, Lars, Katz, Neal, Pettinini, Max
We estimate the value of the matter density parameter \Omega_0 by combining constraints from the galaxy cluster mass function with Croft et al.'s recent measurement of the mass power spectrum, P(k),...
Croft, Rupert A. C., Weinberg, David H., Pettini, Max, Hernquist, Lars, Katz, Neal
We measure the linear power spectrum of mass density fluctuations at redshift z=2.5 from the \lya forest absorption in a sample of 19 QSO spectra, using the method introduced by Croft et al. (1998)....
The Clustering of High Redshift Galaxies in the Cold Dark Matter Scenario (1998)
Katz, Neal, Hernquist, Lars, Weinberg, David H.
We investigate the clustering of high redshift galaxies in five variants of the cold dark matter (CDM) scenario, using hydrodynamic cosmological simulations that resolve the formation of systems with...
Reconstruction Analysis of Galaxy Redshift Surveys: A Hybrid Reconstruction Method (1998)
Narayanan, Vijay K., Weinberg, David H.
In reconstruction analysis of galaxy redshift surveys, one works backwards from the observed galaxy distribution to the primordial density field in the same region, then evolves the primordial...
Cosmological Simulations with Scale-Free Initial Conditions II: Radiative Cooling (1998)
Owen, J. Michael, Weinberg, David H., Villumsen, Jens V.
The growth of structure from scale-free initial conditions is one of the most important tests of cosmological simulation methods, providing a realistically complex problem in which numerical results...
Mock 2dF and SDSS galaxy redshift surveys (1998)
Cole, Shaun, Hatton, Steve, Weinberg, David H., Frenk, Carlos S.
We present a comprehensive set of mock 2dF and SDSS galaxy redshift surveys constructed from a set of large, high-resolution cosmological N-body simulations. The radial selection functions and...
Simulating Gas at High Redshift (1998)
Katz, Neal, Hernquist, Lars, Weinberg, David H.
We discuss simulations of gas at high redshift. We briefly review the methods used and the results for quasar absorption lines. We present gas mass functions and galaxy correlation functions for 5...
Constraints on the Effects of Locally-biased Galaxy Formation (1997)
Scherrer, Robert J., Weinberg, David H.
While it is well-known that "biased galaxy formation" can increase the strength of galaxy clustering, it is less clear whether straightforward biasing schemes can change the shape of the galaxy...
Hubble Flow Broadening of the Lyman-alpha Forest and its Implications (1997)
Weinberg, David H., Hernquist, Lars, Katz, Neal, Croft, Rupert, Miralda-Escudé, Jordi
Lyman-alpha forest lines in QSO spectra have typical widths of 20-50 km/s. Low column density absorbers in cosmological simulations are large, diffuse structures, and the Hubble flow across the...
A Study of Quasar Clustering at z>2.7 from the Palomar Transit Grism Survey (1997)
Stephens, Andrew W., Schneider, Donald P., Schmidt, Maarten, Gunn, James E., Weinberg, David H.
The quest for structure indicators at earlier and earlier times in the evolution of the universe has led to the search for objects with ever higher redshifts. The Palomar Transit Grism Survey has...
Simulating Cosmic Structure Formation (1997)
Weinberg, David H., Katz, Neal, Hernquist, Lars
We describe cosmological simulation techniques and their application to studies of cosmic structure formation, with particular attention to recent hydrodynamic simulations of structure in the high...
Croft, Rupert A. C., Weinberg, David H., Katz, Neal, Hernquist, Lars
We present a method to recover the shape and amplitude of the power spectrum of mass fluctuations, P(k), from observations of the high redshift \lya forest. The method is motivated by the physical...
Quasar Clustering and Spacetime Geometry (1997)
Popowski, Piotr A., Weinberg, David H., Ryden, Barbara S., Osmer, Patrick S.
The non-Euclidean geometry of spacetime induces an anisotropy in the apparent correlation function of high-redshift quasars. This effect can constrain the cosmological constant \Lambda independent of...
Cosmological Constraints from High-Redshift Damped Lyman-Alpha Systems (1997)
Ma, Chung-Pei, Bertschinger, Edmund, Hernquist, Lars, Weinberg, David H., Katz, Neal
Any viable cosmological model must produce enough structure at early epochs to explain the amount of gas associated with high-redshift damped Ly$\alpha$ systems. We study the evolution of damped...
Testing Cosmological Models Against the Abundance of Damped Lyman-Alpha Absorbers (1997)
Gardner, Jeffrey P., Katz, Neal, Weinberg, David H., Hernquist, Lars
We calculate the number of damped Lyman-alpha absorbers expected in various popular cosmological models as a function of redshift and compare our predictions with observed abundances. The...
Cosmological Simulations with Scale-Free Initial Conditions I: Adiabatic Hydrodynamics (1997)
Owen, J. Michael, Weinberg, David H., Evrard, August E., Hernquist, Lars, Katz, Neal
We analyze hierarchical structure formation based on scale-free initial conditions in an Einstein-de Sitter universe, including a baryonic component. We present three independent, smoothed particle...
Large-scale structure in COBE-normalized cold dark matter cosmogonies (1997)
Cole, Shaun, Weinberg, David H., Frenk, Carlos S., Ratra, Bharat
We study the clustering of the mass distribution in COBE-normalized open and flat CDM models using large N-body simulations. With an age of the universe of 14 Gyr (12 Gyr) for the flat (open) models...
Croft, Rupert A. C., Weinberg, David H., Hernquist, Lars, Katz, Neal
In gravitational instability models, \lya absorption arises from a continuous fluctuating medium, so that spectra provide a non-linear one-dimensional ``map'' of the underlying density field. We...
The Topology of Large Scale Structure in the 1.2 Jy IRAS Redshift Survey (1997)
Protogeros, Zacharias A. M., Weinberg, David H.
We measure the topology (genus) of isodensity contour surfaces in volume limited subsets of the 1.2 Jy IRAS redshift survey, for smoothing scales $\lambda=4\hmpc$, $7\hmpc$, and $12\hmpc$. At...
Metal Lines Associated with Lyman Alpha Absorbers: A Comparison of Theory and Observations (1997)
Hellsten, Uffe, Dave, Romeel, Hernquist, Lars, Weinberg, David H., Katz, Neal
We study metal line absorption of CIV, CII, SiIV, and NV at redshifts z=3.5 to z=2 within the framework of a cosmological model for the Lyman alpha forest, comparing the results of numerical...
A Lower Bound on the Cosmic Baryon Density (1997)
Weinberg, David H., Miralda-Escude, Jordi, Hernquist, Lars, Katz, Neal
We derive analytic lower bounds on the cosmic baryon density by requiring that the high-redshift IGM contain enough neutral hydrogen to produce the observed \lya absorption in quasar spectra. The key...
Intergalactic Helium Absorption in Cold Dark Matter Models (1996)
Croft, Rupert A. C., Weinberg, David H., Katz, Neal, Hernquist, Lars
Observations from the HUT and the HST have recently detected HeII absorption along the lines of sight to two high redshift quasars. We use cosmological simulations with gas dynamics to investigate...
Galaxy Structure, Dark Matter, and Galaxy Formation (1996)
The structure of galaxies, the nature of dark matter, and the physics of galaxy formation were the interlocking themes of DM 1996: Dark and Visible Matter in Galaxies and Cosmological Implications....
The Population of Damped Lyman-alpha and Lyman Limit Systems in the Cold Dark Matter Model (1996)
Gardner, Jeffrey P., Katz, Neal, Hernquist, Lars, Weinberg, David H.
Lyman limit and damped Lyman-alpha absorption systems probe the distribution of collapsed, cold gas at high redshift. Numerical simulations that incorporate gravity and gas dynamics can predict the...
Davé, Romeel, Hernquist, Lars, Weinberg, David H., Katz, Neal
We use an automated Voigt-profile fitting procedure to extract statistical properties of the Ly$\alpha$ forest in a numerical simulation of an $\Omega=1$, cold dark matter (CDM) universe. Our...
Photoionization, Numerical Resolution, and Galaxy Formation (1996)
Weinberg, David H., Hernquist, Lars, Katz, Neal
Using cosmological simulations that incorporate gas dynamics and gravitational forces, we investigate the influence of photoionization by a UV radiation background on the formation of galaxies. In...
Imaging the Lyman-alpha Forest (1995)
Gould, Andrew, Weinberg, David H.
We show that it is now possible to image optically thick $\lya$ clouds in fluorescent $\lya$ emission with a relatively long ($\sim 20 $hr) integration on a large ($\sim 10 $m) telescope. For a broad...
Small Scale Structure and High Redshift HI (1995)
Weinberg, David H., Hernquist, Lars, Katz, Neal, Miralda-Escude, Jordi
Cosmological simulations with gas dynamics suggest that the Lyman-alpha forest is produced mainly by "small scale structure" --- filaments and sheets that are the high redshift analog of today's...
Thoul, Anne A., Weinberg, David H.
Photoionization by the high-redshift ultraviolet radiation background heats low density gas before it falls into dark matter potential wells, and it eliminates the neutral hydrogen and singly ionized...
The Lyman-alpha Forest in the Cold Dark Matter Model (1995)
Hernquist, Lars, Katz, Neal, Weinberg, David H., Miralda-Escude, Jordi
Cosmological simulations with gas provide a detailed description of the intergalactic medium, making possible predictions of neutral hydrogen absorption in the spectra of background QSOs. We present...
Damped Lyman-alpha and Lyman Limit Absorbers in the Cold Dark Matter Model (1995)
Katz, Neal, Weinberg, David H., Hernquist, Lars, Miralda-Escude, Jordi
We study the formation of damped \lya and Lyman limit absorbers in a hierarchical clustering scenario using a gas dynamical simulation of an $\Omega = 1$, cold dark matter universe. In the...
Cosmological Simulations with TreeSPH (1995)
Katz, Neal, Weinberg, David H., Hernquist, Lars
We describe numerical methods for incorporating gas dynamics into cosmological simulations and present illustrative applications to the cold dark matter (CDM) scenario. Our evolution code, a version...
The Sloan Digital Sky Survey (1994)
Gunn, James E., Weinberg, David H.
We summarize the plans for and the current status of the Sloan Digital Sky Survey, a digital imaging and spectroscopic survey of $\pi$ steradians in the northern Galactic cap. The CCD photometric...
Constraints onOmega from the IRAS Redshift Surveys (1994)
Cole, Shaun, Fisher, Karl B., Weinberg, David H.
We measure the anisotropy of the redshift-space power spectrum in the 1.2-Jy and QDOT redshift surveys of IRAS-selected galaxies. On large scales, this anisotropy is caused by coherent peculiar...
Studying Structure Formation With Large Galaxy Redshift Surveys (1994)
I outline the connections between some of the most widely used statistical measures of galaxy clustering and the fundamental issues in the theory of structure formation. I devote particular attention...
Fourier Analysis of Redshift Space Distortions and the Determination of Omega (1993)
Cole, Shaun, Fisher, Karl B., Weinberg, David H.
The peculiar velocities of galaxies distort the pattern of galaxy clustering in redshift space, making the redshift space power spectrum anisotropic. In the linear regime, the strength of this...
Cosmic Voids and Biased Galaxy Formation (1993)
Little, Blane, Weinberg, David H.
Using cosmological $N$-body simulations and the void probability function (VPF), we investigate the statistical properties of voids within a wide range of initially Gaussian models for the origin of...
The Sloan Digital Sky Survey (1992)
We summarize the plans for and the current status of the Sloan Digital Sky Survey, a digital imaging and spectroscopic survey of ß steradians in the northern Galactic cap. The CCD photometric survey...
The biochemical genetics of human adenovirus type 2 early region 4 / (1985)
Thesis (Ph. D.)--Johns Hopkins University, 1985.
New scales for measuring the clinical status and changes in severity of dyspnea / (1981)
Thesis (M.D.)--Yale University, 1981.
Vita.
A role for the melanocortin 4 receptor in sexual function
Martin, William J., Howard, Andrew D., Nargund, Ravi P., Austin, Christopher P., Guan, Xiaoming, ...
By using a combination of genetic, pharmacological, and anatomical approaches, we show that the melanocortin 4 receptor (MC4R), implicated in the control of food intake and energy expenditure, also...
Reversal of experimental diabetic neuropathy by VEGF gene transfer
Schratzberger, Peter, Walter, Dirk H., Rittig, Kilian, Bahlmann, Ferdinand H., Pola, Roberto, Curry, Cynthia, ...
The pathogenetic basis for diabetic neuropathy has been enigmatic. Using two different animal models of diabetes, we have investigated the hypothesis that experimental diabetic neuropathy results...
A role for the melanocortin 4 receptor in sexual function
Martin, William J., Howard, Andrew D., Nargund, Ravi P., Austin, Christopher P., Guan, Xiaoming, ...
By using a combination of genetic, pharmacological, and anatomical approaches, we show that the melanocortin 4 receptor (MC4R), implicated in the control of food intake and energy expenditure, also...
Reversal of experimental diabetic neuropathy by VEGF gene transfer
Schratzberger, Peter, Walter, Dirk H., Rittig, Kilian, Bahlmann, Ferdinand H., Pola, Roberto, Curry, Cynthia, ...
The pathogenetic basis for diabetic neuropathy has been enigmatic. Using two different animal models of diabetes, we have investigated the hypothesis that experimental diabetic neuropathy results...