Is cosmology just a plausibility argument? (2009)
I review the basis and limitations of plausible inference in cosmology, in particular the limitation that it can only provide fundamentally true inferences when the hypotheses under consideration...
What bandwidth do I need for my image? (2009)
Price-Whelan, Adrian M., Hogg, David W.
Computer representations of real numbers are necessarily discrete, with some finite resolution, discreteness, quantization, or minimum representable difference. We perform astrometric measurements on...
Astrometry.net: Blind astrometric calibration of arbitrary astronomical images (2009)
Lang, Dustin, Hogg, David W., Mierle, Keir, Blanton, Michael, Roweis, Sam
We have built a reliable and robust system that takes as input an astronomical image, and returns as output the pointing, scale, and orientation of that image (the astrometric calibration or WCS...
The Dual Origin of Stellar Halos (2009)
Zolotov, Adi, Willman, Beth, Brooks, Alyson M., Governato, Fabio, Brook, Chris B., Hogg, David W., ...
We investigate the formation of the stellar halos of four simulated disk galaxies using high-resolution, cosmological SPH + N-body simulations. These simulations include a self-consistent treatment...
Galactic masers and the Milky Way circular velocity (2009)
Bovy, Jo, Hogg, David W., Rix, Hans-Walter
Masers found in massive star-forming regions can be located precisely in six-dimensional phase space and therefore serve as a tool for studying Milky Way dynamics. The non-random orbital phases at...
The Aromatic Features in Very Faint Dwarf Galaxies (2009)
Wu, Ronin, Hogg, David W., Moustakas, John
We present optical and mid-infrared photometry of a statistically complete sample of 29 very faint dwarf galaxies (M_r > -15 mag) selected from the SDSS spectroscopic sample and observed in the...
Constraining the Milky Way potential with a 6-D phase-space map of the GD-1 stellar stream (2009)
Koposov, Sergey E., Rix, Hans-Walter, Hogg, David W.
The narrow GD-1 stream of stars, spanning 60 deg on the sky at a distance of ~10 kpc from the Sun and ~15 kpc from the Galactic center, is presumed to be debris from a tidally disrupted star cluster...
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...
Bovy, Jo, Hogg, David W., Roweis, Sam T.
We generalize the well-known mixtures of Gaussians approach to density estimation and the accompanying Expectation-Maximization technique for finding the maximum likelihood parameters of the mixture...
Bovy, Jo, Hogg, David W., Roweis, Sam T.
We present a three-dimensional reconstruction of the velocity distribution of nearby stars (
The Dual Origin of Stellar Halos (2009)
Zolotov, Adi, Willman, Beth, Brooks, Alyson M., Governato, Fabio, Brook, Chris B., Hogg, David W., ...
We investigate the formation of the stellar halos of four simulated disk galaxies using high resolution, cosmological SPH + N-Body simulations. These simulations include a self-consistent treatment...
The gravitational force law in the Solar System (2009)
Bovy, Jo, Murray, Iain, Hogg, David W.
If the Solar System is long-lived and non-resonant (that is, if the planets are bound and have evolved independently through many orbital times), and if the system is observed at any non-special...
Astronomical Software Wants To Be Free: A Manifesto (2009)
Weiner, Benjamin J., Blanton, Michael R., Coil, Alison L., Cooper, Michael C., Davé, Romeel, Hogg, David W., ...
Astronomical software is now a fact of daily life for all hands-on members of our community. Purpose-built software for data reduction and modeling tasks becomes ever more critical as we handle...
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, ...
Cosmic transparency: A test with the baryon acoustic feature and type Ia supernovae (2008)
More, Surhud, Bovy, Jo, Hogg, David W.
Conservation of the phase-space density of photons plus Lorentz invariance requires that the cosmological luminosity distance be larger than the angular diameter distance by a factor of $(1+z)^2$,...
Astronomical imaging: The theory of everything (2008)
We are developing automated systems to provide homogeneous calibration meta-data for heterogeneous imaging data, using the pixel content of the image alone where necessary. Standardized and complete...
Measuring the undetectable: Proper motions and parallaxes of very faint sources (2008)
Lang, Dustin, Hogg, David W., Jester, Sebastian, Rix, Hans-Walter
The near future of astrophysics involves many large solid-angle, multi-epoch, multi-band imaging surveys. These surveys will, at their faint limits, have data on large numbers of sources that are too...
The kinematic origin of the cosmological redshift (2008)
Bunn, Emory F., Hogg, David W.
A common belief among cosmologists is that the cosmological redshift cannot be properly viewed as a Doppler shift (that is, as evidence for a recession velocity), but must instead be viewed in terms...
Data analysis recipes: Choosing the binning for a histogram (2008)
Data points are placed in bins when a histogram is created, but there is always a decision to be made about the number or width of the bins. This decision is often made arbitrarily or subjectively,...
An Improved Photometric Calibration of the Sloan Digital Sky Survey Imaging Data (2008)
Padmanabhan, Nikhil, Schlegel, David J., Finkbeiner, Douglas P., Barentine, J.C., Blanton, Michael R., Brewington, Howard J., ...
We present an algorithm to photometrically calibrate wide field optical imaging surveys, that simultaneously solves for the calibration parameters and relative stellar fluxes using overlapping...
Automated detection of galaxy-scale gravitational lenses in high resolution imaging data (2008)
Marshall, Philip J., Hogg, David W., Moustakas, Leonidas A., Fassnacht, Christopher D., Bradac, Marusa, Schrabback, Tim, ...
Lens modeling is the key to successful and meaningful automated strong galaxy-scale gravitational lens detection. We have implemented a lens-modeling "robot" that treats every bright red galaxy (BRG)...
The Transparency of Galaxy Clusters (2008)
Bovy, Jo, Hogg, David W., Moustakas, John
If galaxy clusters contain intracluster dust, the spectra of galaxies lying behind clusters should show attenuation by dust absorption. We compare the optical (3500 - 7200 \AA) spectra of 60,267...
Blind Date: Using proper motions to determine the ages of historical images (2008)
Barron, Jonathan T., Hogg, David W., Lang, Dustin, Roweis, Sam
Astrometric calibration is based on patterns of cataloged stars and therefore effectively assumes a particular epoch, which can be substantially incorrect for historical images. With the known proper...
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...
Intrinsic Properties of Low-z SDSS Galaxies (2008)
Maller, Ariyeh H., Berlind, Andreas A., Blanton, Michael, Hogg, David W.
Galaxies are seen from different viewing angles and their observed properties change as a function of viewing angle. In many circumstances we would rather know the intrinsic properties of galaxies -...
The Intrinsic Properties of SDSS Galaxies (2008)
Maller, Ariyeh H., Berlind, Andreas A., Blanton, Michael R., Hogg, David W.
The observed properties of galaxies vary with inclination; for most applications we would rather have properties that are independent of inclination, intrinsic properties. One way to determine...
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 accretion origin of the Milky Way's stellar halo (2008)
Bell, Eric F., Zucker, Daniel B., Belokurov, Vasily, Sharma, Sanjib, Johnston, Kathryn V., Bullock, James S., ...
We have used data from the Sloan Digital Sky Survey (SDSS) Data Release 5 to explore the overall structure and substructure of the stellar halo of the Milky Way using ~4 million color-selected...
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...
Redshift Clustering In The Hubble Deep Field (2007)
Judith Cohen Lennox, Judith G. Cohen, Lennox L. Cowie, David W. Hogg, Antoinette Songaila, Roger Blandford, ...
We present initial results from a redshift survey carried out with the low-resolution imaging spectrograph on the 10 m W. M. Keck Telescope in the Hubble Deep Field. In the redshift distribution of...
Judith G. Cohen, Roger Blandford, David W. Hogg, Michael A. Pahre, Patrick L
The results of a spectroscopic investigation of a complete sample of objects with K s! 20 mag in a 2 by 7.3 arcmin field at J005325+1234 are reported. Redshifts were successfully obtained for 163 of...
David W. Hogg, Michael A. Pahre, James K. Mccarthy, Judith G. Cohen, Roger Blandford, Ian Smail, ...
Ground-based counts and colors of faint galaxies in the U and R bands in one field at high Galactic latitude are presented. Integrated over flux, a total of 1:2 \Theta 10 5 sources per square degree...
Judith G. Cohen, David W. Hogg, Roger Blandford, Michael A, Patrick L. Shopbell
Abstract. We discuss the very red objects found in the first field of the Caltech Faint Galaxy Redshift Survey, for which the observations and analysis are now complete. In this field, which is 15...
The oxygen-II luminosity density of the Universe 1 (2007)
David W. Hogg, Judith G. Cohen, Roger Blandford, Michael A. Pahre
Equivalent widths of [O II] 3727 A lines are measured in 375 faint galaxy spectra taken as part of the Caltech Faint Galaxy Redshift Survey centered on the Hubble Deep Field. The sensitivity of the...
STRONG REDSHIFT CLUSTERING OF DISTANT GALAXIES 1 (2007)
Judith G. Cohen, David W. Hogg, Michael A. Pahre, Roger Blandford
We present initial results from a redshift survey carried out with the Low Resolution Imaging Spectrograph on the 10 m W. M. Keck Telescope of a field 14.6 arc-min 2 in solid angle. In the redshift...
Judith G. Cohen, David W. Hogg, Roger Blandford, Patrick L, Kevin Richberg
We present the techniques used to determine redshifts and to characterize the spectra of objects in the Caltech Faint Galaxy Redshift Survey in terms of spectral classes and redshift quality classes....
Michael A. Pahre, Judith G. Cohen, Gerry Neugebauer, David W. Hogg, Roger D, S. G. Djorgovski, ...
, Thomas H. Jarrett 7, and T. N. Gautier 8 This paper describes the photometric imaging data used to construct a near--infrared selected sample of 195 objects to K = 20 mag, as part of a redshift...
Cleaning the USNO-B Catalog through automatic detection of optical artifacts (2007)
Barron, Jonathan T., Stumm, Christopher, Hogg, David W., Lang, Dustin, Roweis, Sam
The USNO-B Catalog contains spurious entries that are caused by diffraction spikes and circular reflection halos around bright stars in the original imaging data. These spurious entries appear in the...
The growth of luminous red galaxies by merging (2007)
Masjedi, Morad, Hogg, David W., Blanton, Michael R.
We study the role of major and minor mergers in the mass growth of luminous red galaxies. We present small-scale ($0.01
The accretion origin of the Milky Way's stellar halo (2007)
Bell, Eric F., Zucker, Daniel B., Belokurov, Vasily, Sharma, Sanjib, Johnston, Kathryn V., Bullock, James S., ...
We have used data from the Sloan Digital Sky Survey (SDSS) Data Release 5 to explore the overall structure and substructure of the stellar halo of the Milky Way using about 4 million color-selected...
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 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 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, ...
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...
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...
The asymmetric relations among galaxy color, structure, and environment (2006)
Quintero, Alejandro D., Berlind, Andreas A., Blanton, MichaelR., Hogg, David W.
We investigate the dependences of galaxy star-formation history and galaxy morphology on environment, using color and H-alpha equivalent width as star-formation history indicators, using...
The Clustering of Galaxy Groups: Dependence on Mass and Other Properties (2006)
Berlind, Andreas A., Kazin, Eyal, Blanton, Michael R., Pueblas, Sebastian, Scoccimarro, Roman, Hogg, David W.
We investigate the clustering of galaxy groups and clusters in the SDSS using the Berlind et al. (2006) group sample, which is designed to identify galaxy systems that each occupy a single dark...
Most introductory physics textbooks ask students to ignore air resistance but include no analysis of the appropriateness of that approximation. Indeed the approximation is inappropriate in many...
What aspects of galaxy environment matter? (2006)
Blanton, Michael R., Berlind, Andreas A., Hogg, David W.
We determine what aspects of the density field surrounding galaxies most affect their properties. For Sloan Digital Sky Survey galaxies, we measure the group environment, meaning the host group...
What triggers galaxy transformations? The environments of post-starburst galaxies (2006)
Hogg, David W., Masjedi, Morad, Berlind, Andreas A., Blanton, Michael R., Quintero, Alejandro D., Brinkmann, J.
(abridged) There are good observational reasons to believe that the progenitors of red galaxies have undergone starbursts, followed by a post-starburst phase. We investigate the environments of...
Willman 1 - A Galactic Satellite at 40 kpc With Multiple Stellar Tails (2006)
Willman, Beth, Masjedi, Morad, Hogg, David W., Dalcanton, Julianne J., Martinez-Delgado, David, Blanton, Michael, ...
SDSSJ1049+5103, commonly known as Willman 1, is an extremely low-luminosity Milky Way companion whose properties are intermediate between those of globular clusters and dwarf spheroidals. In this...
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...
SDSS Pre-Burst Observations of Recent Gamma-Ray Burst Fields (2006)
Cool, Richard J., Eisenstein, Daniel J., Hogg, David W., Blanton, Michael R., Schlegel, David J., Brinkmann, J., ...
In this paper, we present Sloan Digital Sky Survey (SDSS) photometry and spectroscopy in the fields of 24 gamma-ray bursts (GRBs) observed by Swift, including bursts localized by Swift, HETE-2, and...
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, ...
Very small scale clustering and merger rate of Luminous Red Galaxies (2006)
Masjedi, Morad, Hogg, David W., Cool, Richard J., Eisenstein, Daniel J., Blanton, Michael R., Zehavi, Idit, ...
We present the small-scale (0.01 Mpc
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, ...
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...
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...
Very Small-Scale Clustering and Merger Rate of Luminous Red Galaxies (2005)
Masjedi, Morad, Hogg, David W., Cool, Richard J., Eisenstein, Daniel J., Blanton, Michael R., Zehavi, Idit, ...
We present the small-scale (0.01
What best constrains galaxy evolution in the local Universe? (2005)
After a polemical introduction about the proper activity of an astrophysicist facing a dominant theoretical model and many Tb of highly informative data, I review a few recent results on the...
What galaxies know about their nearest cluster (2005)
Quintero, Alejandro D., Berlind, Andreas A., Blanton, Michael R., Hogg, David W.
We investigate the extent to which galaxies' star-formation histories and morphologies are determined by their clustocentric distance and their nearest cluster's richness. We look at three tracers of...
Foreground and Source of a Cluster of Ultra-high Energy Cosmic Rays (2005)
Farrar, Glennys R., Berlind, Andreas A., Hogg, David W.
We investigate the origin of a nearly pointlike cluster of 5 ultrahigh energy cosmic rays at RA ~169.2deg and dec ~56.8deg, using Sloan Digital Sky Survey and other data. No particular source...
Hogg, David W., Blanton, Michael R., Roweis, Sam T., Johnston, Kathryn V.
[abridged] A "missing data" algorithm is developed to model (ie, reconstruct) the three-dimensional velocity distribution function of a sample of stars using data (velocity measurements) every one of...
A New Milky Way Dwarf Galaxy in Ursa Major (2005)
Willman, Beth, Dalcanton, Julianne J., Martinez-Delgado, David, West, Andrew A., Blanton, Michael R., Hogg, David W., ...
In this Letter, we report the discovery of a new dwarf satellite to the Milky Way, located at ($\alpha_{2000}, \delta_{2000}$) $=$ (158.72,51.92) in the constellation of Ursa Major. This object was...
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., ...
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., ...
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,...
Eisenstein, Daniel J., Zehavi, Idit, Hogg, David W., Scoccimarro, Roman, Blanton, Michael R., Nichol, Robert C., ...
Abstract not available.
Eisenstein, Daniel J., Zehavi, Idit, Hogg, David W., Scoccimarro, Roman, Blanton, Michael R., Nichol, Robert C., ...
Abstract not available.
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,...
Eisenstein, Daniel J., Zehavi, Idit, Hogg, David W., Scoccimarro, Roman, Blanton, Michael R., Nichol, Robert C., ...
Abstract not available.
Introductory physics: The new scholasticism (2004)
Mahajan, Sanjoy, Hogg, David W.
Most introductory physics textbooks neglect air resistance in situations where an astute student can observe that it dominates the dynamics. We give examples from many books. Using dimensional...
The Intermediate-Scale Clustering of Luminous Red Galaxies (2004)
Zehavi, Idit, Eisenstein, Daniel J., Nichol, Robert C., Blanton, Michael R., Hogg, David W., Brinkmann, Jon, ...
We report the intermediate-scale (0.3 to 40 Mpc/h) clustering of 35,000 luminous early-type galaxies at redshifts 0.16 to 0.44 from the Sloan Digital Sky Survey. We present the redshift-space...
Cosmic homogeneity demonstrated with luminous red galaxies (2004)
Hogg, David W., Eisenstein, Daniel J., Blanton, Michael R., Bahcall, Neta A., Brinkmann, J., Gunn, James E., ...
We test the homogeneity of the Universe at $z\sim 0.3$ with the Luminous Red Galaxy (LRG) spectroscopic sample of the Sloan Digital Sky Survey. First, the mean number $N(R)$ of LRGs within completely...
The scale-dependence of relative galaxy bias: encouragement for the halo model description (2004)
Blanton, Michael R., Eisenstein, Daniel J., Hogg, David W., Zehavi, Idit
We investigate the relationship between the colors, luminosities, and environments of galaxies in the Sloan Digital Sky Survey spectroscopic sample, using environmental measurements on scales ranging...
A New Milky Way Companion: Unusual Globular Cluster or Extreme Dwarf Satellite? (2004)
Willman, Beth, Blanton, Michael R., West, Andrew A., Dalcanton, Julianne J., Hogg, David W., Schneider, Donald P., ...
We report the discovery of SDSSJ1049+5103, an overdensity of resolved blue stars at (\alpha_{2000}, \delta_{2000}) = (162.343, 51.051). This object appears to be an old, metal-poor stellar system at...
NYU-VAGC: a galaxy catalog based on new public surveys (2004)
Blanton, Michael R., Schlegel, David J., Strauss, Michael A., Brinkmann, J., Finkbeiner, Douglas, Fukugita, Masataka, ...
Here we present the New York University Value-Added Galaxy Catalog (NYU-VAGC), a catalog of local galaxies (mostly below a redshift of about 0.3) based on a set of publicly-released surveys...
Anomalously low PAH emission from low-luminosity galaxies (2004)
Hogg, David W., Tremonti, Christy A., Blanton, Michael R., Finkbeiner, Douglas P., Padmanabhan, Nikhil, Quintero, Alejandro D., ...
The Spitzer Space Telescope First Look Survey Infrared Array Camera (IRAC) near and mid-infrared imaging data partially overlaps the Sloan Digital Sky Survey (SDSS), with 313 visually selected (r
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...
A more informative picture of the HST Ultra Deep Field (2004)
Wherry, Nicholas, Blanton, Michael R., Hogg, David W.
The Hubble Space Telescope has obtained some of its well-deserved impact by producing stunning three-color (RGB) pictures from three-band imaging data. Here we produce a new RGB representation of the...
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., ...
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., ...
The dependence on environment of the color-magnitude relation of galaxies (2004)
Hogg, David W., Blanton, Michael R., Brinchmann, Jarle, Eisenstein, Daniel J., Schlegel, David J., Gunn, James E., ...
The distribution in color and absolute magnitude is presented for 55,158 galaxies taken from the Sloan Digital Sky Survey in the redshift range 0.08lt;zlt;0.12, as a function of the galaxy...
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, 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 deg2 of five-band (ugriz) imaging data with photometry for...
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...
Selection and photometric properties of K+A galaxies (2004)
Quintero, Alejandro D., Hogg, David W., Blanton, Michael R., Schlegel, David J., Eisenstein, Daniel J., Gunn, James E., ...
Two different simple measurements of galaxy star formation rate with different timescales are compared empirically on 156,395 fiber spectra of galaxies with r < 17.77 mag taken from the Sloan...
David W. Hogg, Michael R. Blanton, Sam T. Roweis, Kathryn V. Johnston
An algorithm is developed to model the three-dimensional velocity distribution function of a sample of stars using only measurements of each star’s two-dimensional tangential velocity. The...
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...
Selection and photometric properties of K+A galaxies (2004)
Quintero, Alejandro D., Hogg, David W., Blanton, Michael R., Schlegel, David J., Eisenstein, Daniel J., Gunn, James E., ...
Two different simple measurements of galaxy star formation rate with different timescales are compared empirically on 156,395 fiber spectra of galaxies with r < 17.77 mag taken from the Sloan...
Preparing Red-Green-Blue (RGB) Images from CCD Data (2003)
Lupton, Robert, Blanton, Michael R., Fekete, George, Hogg, David W., O'Mullane, Wil, Szalay, Alex, ...
We present a new, and we believe arguably correct, algorithm for producing Red-Green-Blue (RBG) composites from 3-band astronomical images. Our method ensures that an object with a specified...
The dependence on environment of the color-magnitude relation of galaxies (2003)
Hogg, David W., Blanton, Michael R., Brinchmann, Jarle, Eisenstein, Daniel J., Schlegel, David J., Gunn, James E., ...
The distribution in color and absolute magnitude is presented for 55,158 galaxies taken from the Sloan Digital Sky Survey in the redshift range $0.08
Selection and photometric properties of K+A galaxies (2003)
Quintero, Alejandro D., Hogg, David W., Blanton, Michael R., Schlegel, David J., Eisenstein, Daniel J., Gunn, James E., ...
Two different simple measurements of galaxy star formation rate with different timescales are compared empirically on $156,395$ fiber spectra of galaxies with $r
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, 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...
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 $8 h^{-1} \mathrm{Mpc}$...
Average spectra of massive galaxies in the SDSS (2002)
Eisenstein, Daniel J., Hogg, David W., Fukugita, Masataka, Nakamura, Osamu, Bernardi, Mariangela, Finkbeiner, Douglas P., ...
We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high S/N average spectra in the rest-frame optical and ultraviolet (2600A to 7000A). The average...
Hogg, David W., Baldry, Ivan K., Blanton, Michael R., Eisenstein, Daniel J.
The K correction "corrects" for the fact that sources observed at different redshifts are, in general, compared with standards or each other at different rest-frame wavelengths. It is part of the...
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...
Estimating Fixed Frame Galaxy Magnitudes in the SDSS (2002)
Blanton, Michael R., Brinkmann, J., Csabai, Istvan, Doi, Mamoru, Eisenstein, Daniel, Fukugita, Masataka, ...
Broad-band measurements of flux for galaxies at different redshifts measure different regions of the rest-frame galaxy spectrum. Certain astronomical questions, such as the evolution of the...
The luminosity density of red galaxies (2002)
Hogg, David W., Blanton, Michael, Strateva, Iskra
A complete sample of $7.7\times 10^4$ galaxies with five-band imaging and spectroscopic redshifts from the Sloan Digital Sky Survey is used to determine the fraction of the optical luminosity density...
The Sloan Digital Sky Survey Quasar Catalog. I. Early data release (2002)
Schneider, Donald P., Richards, Gordon T., Fan, Xiaohui, Hall, Patrick B., Strauss, Michael A., Vanden Berk, Daniel E., ...
We present the first edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of the 3814 objects ( 3000 discovered by the SDSS) in the initial SDSS public data release...
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, Castander, Francisco J., ...
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,...
A photometricity and extinction monitor at the Apache Point Observatory (2001)
Hogg, David W., Finkbeiner, Douglas P., Schlegel, David J., Gunn, James E.
An unsupervised software ``robot'' that automatically and robustly reduces and analyzes CCD observations of photometric standard stars is described. The robot measures extinction coefficients and...
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...
A meta-analysis of cosmic star-formation history (2001)
A meta-analysis is performed of the literature on evolution in cosmic star-formation rate density from redshift unity to the present day. The measurements are extremely diverse, including radio,...
Bergh, Sidney Van Den, Cohen, Judith G., Hogg, David W., Blandford, Roger
Morphological classifications are reported for Hubble Space Telescope (HST) images of 241 galaxies in the Hubble Deep Field (HDF) and its Flanking Fields (FF) with measured redshifts in the interval...
The Caltech Faint Galaxy Redshift Survey XII: Clustering of Galaxies (2000)
Hogg, David W., Cohen, Judith G., Blandford, Roger
A clustering analysis is performed on two samples of $\sim 600$ faint galaxies each, in two widely separated regions of the sky, including the Hubble Deep Field. One of the survey regions is...
Confusion errors in astrometry and counterpart association (2000)
In very crowded fields, the modulation of the background by the sea of unresolved faint sources induces centroid shifts. The errors increase with the number of sources per beam. Even the most...
The Merger Rate to Redshift One from Kinematic Pairs: Caltech Faint Galaxy Redshift Survey XI (2000)
Carlberg, R. G., Cohen, Judith G., Patton, D. R., Blandford, Roger, Hogg, David W., Yee, H. K. C., ...
The rate of mass accumulation due to galaxy merging depends on the mass, density, and velocity distribution of galaxies in the near neighborhood of a host galaxy. The fractional luminosity in...
Constraints on Photometric Calibration from Observations of High-Redshift Type Ia Supernovae (2000)
The good match of the type Ia supernova (SNIa) Hubble Diagram to the prediction of a not-unreasonable cosmological world model shows that measurements of standard stars and their comparison with...
Three-micron imaging of the Hubble Deep Field (1999)
Hogg, David W., Neugebauer, Gerry, Cohen, Judith G., Dickinson, Mark, Djorgovski, S. G., Matthews, Keith, ...
Images of the Hubble Deep Field at 3.2 um, taken with the 10-m Keck Telescope, are presented. The images cover a total area of ~2.5 arcmin^2. To a 5-sigma limit of [3.2](total)=17.5 mag...
Hogg, David W., Pahre, Michael A., Adelberger, Kurt L., Blandford, Roger, Cohen, Judith G., Gautier, T. N., ...
Detection and photometry of sources in the U_n, G, R, and K_s bands in a 9x9 arcmin^2 region of the sky, centered on the Hubble Deep Field, are described. The data permit construction of complete...
Distance measures in cosmology (1999)
Formulae for the line-of-sight and transverse comoving distances, proper motion distance, angular diameter distance, luminosity distance, k-correction, distance modulus, comoving volume, lookback...
Fruchter, Andrew S., Thorsett, S. E., Metzger, Mark R., Sahu, Kailash C., Petro, Larry, Livio, Mario, ...
We report on HST and Palomar optical images of the field of GRB 990123, obtained on 8 and 9 February 1999. We find that the optical transient (OT) associated with GRB 990123 is located on an...
HST Imaging Polarimetry of the Gravitational Lens FSC10214+4724 (1998)
Nguyen, Hien T., Eisenhardt, Peter R., Werner, Michael W., Goodrich, Robert, Hogg, David W., Armus, Lee, ...
We present imaging polarimetry of the extremely luminous, redshift 2.3 IRAS source FSC10214+4724. The observations were obtained with HST's Faint Object Camera in the F437M filter, which is free of...
Cohen, Judith G., Hogg, David W., Pahre, Michael A., Blandford, Roger, Shopbell, Patrick L., Richberg, Kevin
We present the techniques used to determine redshifts and to characterize the spectra of objects in the Caltech Faint Galaxy Redshift Survey in terms of spectral classes and redshift quality classes....
Caltech Faint Galaxy Redshift Survey VIII: Analysis for the Field J0053+1234 (1998)
Cohen, Judith G., Blandford, Roger, Hogg, David W., Pahre, Michael A., Shopbell, Patrick L.
The results of a spectroscopic investigation of a complete sample of objects with $K_s 1.5$, and the galaxies in such groups appear to be coeval and to show little sign of ongoing star formation. The...
The Extremely Red Objects Found Thus Far in the Caltech Faint Galaxy Redshift Survey (1998)
Cohen, Judith G., Hogg, David W., Blandford, Roger, Pahre, Michael A., Shopbell, Patrick L.
We discuss the very red objects found in the first field of the Caltech Faint Galaxy Redshift Survey, for which the observations and analysis are now complete. In this field, which is 15 arcmin$^2$...
The faint-galaxy hosts of gamma-ray bursts (1998)
Hogg, David W., Fruchter, Andrew S.
The observed redshifts and magnitudes of the host galaxies of gamma-ray bursts (GRBs) are compared with the predictions of three basic GRB models, in which the comoving rate density of GRBs is (1)...
The oxygen-II luminosity density of the Universe (1998)
Hogg, David W., Cohen, Judith G., Blandford, Roger, Pahre, Michael A.
Equivalent widths of [OII] 3727 A lines are measured in 375 faint galaxy spectra taken as part of the Caltech Faint Galaxy Redshift Survey centered on the Hubble Deep Field. The sensitivity of the...
A blind test of photometric redshift prediction (1998)
Hogg, David W., Cohen, Judith G., Blandford, Roger, Gwyn, Stephen D. J., Hartwick, F. D. A., Mobasher, B., ...
Results of a blind test of photometric redshift predictions against spectroscopic galaxy redshifts obtained in the Hubble Deep Field with the Keck Telescope are presented. The best photometric...
A maximum-likelihood method for improving faint source flux and color estimates (1997)
Hogg, David W., Turner, Edwin L.
Flux estimates for faint sources or transients are systematically biased high because there are far more truly faint sources than bright. Corrections which account for this effect are presented as a...
Hogg, David W., Phinney, E. S.
Dwarf, irregular and infrared-luminous starburst galaxies are all known to have "steep" luminosity functions with faint-end behavior roughly phi(L)-propto- L^(-1.8). This form is exactly what is...
The External Shear Acting on Gravitational Lens B 1422+231 (1997)
Kundic, Tomislav, Hogg, David W., Blandford, Roger D., Cohen, Judith G., Lubin, Lori M., Larkin, James E.
In a number of multiply imaged quasar systems, a significant contribution to the lensing potential is provided by groups and clusters of galaxies associated with the primary lens. As part of an...
What is the redshift of gamma-ray burst 970508? (1997)
A Bayesian likelihood analysis is used to constrain the redshift of the optical transient associated with gamma-ray burst 970508, under the assumption that the absorption at redshift 0.835 is not...
Counts and Colors of Faint Galaxies in the U and R Bands (1997)
Hogg, David W., Pahre, Michael A., McCarthy, James K., Cohen, Judith G., Blandford, Roger, Smail, Ian, ...
Ground-based counts and colors of faint galaxies in the U and R bands in one field at high Galactic latitude are presented. Integrated over flux, a total of 1.2x10^5 sources per square degree are...
Near Infrared Imaging of the Hubble Deep Field with The Keck Telescope (1996)
Hogg, David W., Neugebauer, G., Armus, Lee, Matthews, K., Pahre, Michael A., Soifer, B. T., ...
Two deep K-band ($2.2 \mu m$) images, with point-source detection limits of $K=25.2$ mag (one sigma), taken with the Keck Telescope in subfields of the Hubble Deep Field, are presented and analyzed....
Redshift clustering in the Hubble Deep Field (1996)
Cohen, Judith G., Cowie, Lennox L., Hogg, David W., Songaila, Antoinette, Blandford, Roger, Hu, Esther M., ...
We present initial results from a redshift survey carried out with the Low Resolution Imaging Spectrograph on the 10~m W. M. Keck Telescope in the Hubble Deep Field. In the redshift distribution of...
A candidate gravitational lens in the Hubble Deep Field (1996)
Hogg, David W., Blandford, Roger, Kundić, Tomislav, Fassnacht, C. D., Malhotra, Sangeeta
The discovery of HDF~J123652+621227, a candidate gravitational lens in the HDF, is reported. This lens may be multiply imaging several optical sources at different redshifts. If follow-up...
REDSHIFT CLUSTERING IN THE HUBBLE DEEP FIELD 1 (1996)
Judith G. Cohen, Lennox L. Cowie, David W. Hogg, Roger Bl, Esther M. Hu, Patrick Shopbell
We present initial results from a redshift survey carried out with the Low Resolution Imaging Spectrograph on the 10 m W. M. Keck Telescope in the Hubble Deep Field. In the redshift distribution of...
Eisenhardt, Peter R., Armus, Lee, Hogg, David W., Soifer, B. T., Neugebauer, G., Werner, Michael W.
We present an image of the redshift 2.3 IRAS source FSC10214+4724 at 0.8 microns obtained with the HST WFPC2 Planetary Camera. The source appears as an unresolved (< 0.06") arc 0.7" long, with...
Deep optical galaxy counts with the Keck Telescope (1995)
Smail, Ian, Hogg, David W., Yan, Lin, Cohen, Judy
We present faint galaxy counts from deep $VRI$ images obtained with the Keck Telescope. These images reach $R\sim27$ in median seeing FWHM $\sim 0.5$--0.6 arcsec and we detect a integrated galaxy...
The Discovery of Two Giant Arcs in the Rich Cluster A2219 with the Keck Telescope (1995)
Smail, Ian, Hogg, David W., Blandford, Roger, Cohen, Judith G., Edge, Alastair C., Djorgovski, S. George
We report the discovery with the Keck telescope of two new multiply-imaged arcs in the luminous X-ray cluster A2219 ($z=0.225$). The brighter arc in the field is red and we use spectroscopic and...
Hogg, David W., Blandford, R. D.
A gravitational lens model of the radio quasar B1422+231 is presented which can account for the image arrangement and approximately for the relative magnifications. The locations of the principal...
The principle of maximum entropy production in a simple model of a convection cell (1992)
Hogg, David W. (David Wardell)
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1992.
The principle of maximum entropy production in a simple model of a convection cell (1992)
Hogg, David W. (David Wardell)
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1992.
David W. Hogg, Fred Martin, Mitchel Resnick
This paper describes 12 autonomous "creatures" built with Electronic Bricks. Electronic Bricks are specially-modified lego bricks with simple electronic circuits inside. Although each...