A ground-based 21cm Baryon acoustic oscillation survey (2009)
Seo, Hee-Jong, Dodelson, Scott, Marriner, John, Mcginnis, Dave, Stebbins, Albert, Stoughton, Chris, ...
Baryon acoustic oscillations (BAO) provide a robust standard ruler with which to measure the acceleration of the Universe. The BAO feature has so far been detected in optical galaxy surveys....
Cosmic Neutrino Last Scattering Surface (2009)
Dodelson, Scott, Vesterinen, Mika
Neutrinos decoupled from the rest of the cosmic plasma when the Universe was less than one second old, far earlier than the photons which decoupled at t=380,000 years. Surprisingly, though, the last...
Size Bias in Galaxy Surveys (2009)
Schmidt, Fabian, Rozo, Eduardo, Dodelson, Scott, Hui, Lam, Sheldon, Erin
Only certain galaxies are included in surveys: those bright and large enough to be detectable as extended sources. Because gravitational lensing can make galaxies appear both brighter and larger, the...
Lensing Bias in Cosmic Shear (2009)
Schmidt, Fabian, Rozo, Eduardo, Dodelson, Scott, Hui, Lam, Sheldon, Erin
Only galaxies bright enough and large enough to be unambiguously identified and measured are included in galaxy surveys used to estimate cosmic shear. We demonstrate that because gravitational...
Identifying Dark Matter Annihilation Products In The Diffuse Gamma Ray Background (2009)
Dodelson, Scott, Belikov, Alexander V., Hooper, Dan, Serpico, Pasquale
Annihilation of cosmologically distributed dark matter is predicted to produce a potentially observable flux of high energy photons. Neglecting the contribution from local structure, this signal is...
Observing the Evolution of the Universe (2009)
Aguirre, James, Amblard, Alexandre, Ashoorioon, Amjad, Baccigalupi, Carlo, Balbi, Amedeo, Bartlett, James, ...
How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the universe. Through detailed...
21 cm Intensity Mapping (2009)
Peterson, Jeffrey B., Aleksan, Roy, Ansari, Reza, Bandura, Kevin, Bond, Dick, Bunton, John, ...
Using the 21 cm line, observed all-sky and across the redshift range from 0 to 5, the large scale structure of the Universe can be mapped in three dimensions. This can be accomplished by studying...
Backgrounds and Projected Limits from Dark Matter Direct Detection Experiments (2008)
A simple formula is introduced which indicates the amount by which projections of dark matter direct detection experiments are expected to be degraded due to backgrounds.
CMBPol Mission Concept Study: Probing Inflation with CMB Polarization (2008)
Baumann, Daniel, Jackson, Mark G, Adshead, Peter, Amblard, Alexandre, Ashoorioon, Amjad, Bartolo, Nicola, ...
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measurements to...
CMBPol Mission Concept Study: A Mission to Map our Origins (2008)
Baumann, Daniel, Cooray, Asantha, Dodelson, Scott, Dunkley, Joanna, Fraisse, Aurélien A., Jackson, Mark G., ...
Quantum mechanical metric fluctuations during an early inflationary phase of the universe leave a characteristic imprint in the polarization of the cosmic microwave background (CMB). The amplitude of...
CMBPol Mission Concept Study: Probing Inflation with CMB Polarization (2008)
Baumann, Daniel, Jackson, Mark G., Adshead, Peter, Amblard, Alexandre, Ashoorioon, Amjad, Bartolo, Nicola, ...
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measurements to...
Weighing the spatial and temporal fluctuations of the dark universe (2008)
Zhang, Pengjie, Bean, Rachel, Liguori, Michele, Dodelson, Scott
A generic prediction of the standard cosmology, based on general relativity (GR), dark matter and the cosmological constant (and more generally, smooth dark energy), is that, the two gravitational...
ABSTRACT: Cosmic microwave background (CMB) temperature anisotropies have and will continue to revolutionize our understanding of cosmology. The recent discovery of the previously predicted acoustic...
Universal Weak Lensing Distortion of Cosmological Correlation Functions (2008)
Dodelson, Scott, Schmidt, Fabian, Vallinotto, Alberto
Gravitational lensing affects observed cosmological correlation functions because observed images do not coincide with true source locations. We treat this universal effect in a general way here,...
Weak Lensing Effects on the Galaxy Three-Point Correlation Function (2008)
Schmidt, Fabian, Vallinotto, Alberto, Sefusatti, Emiliano, Dodelson, Scott
We study the corrections to the galaxy three-point correlation function (3PCF) induced by weak lensing magnification due to the matter distribution along the line of sight. We consistently derive all...
Alex Amblard, Beichman, Charles, Bock, James, Caldwell, Robert, Carlstrom, John, Church, Sarah, ...
When we began our study we sought to answer five fundamental implementation questions: 1) can foregrounds be measured and subtracted to a sufficiently low level?; 2) can systematic errors be...
Extracting the Gamma Ray Signal from Dark Matter Annihilation in the Galactic Center Region (2007)
Dodelson, Scott, Hooper, Dan, Serpico, Pasquale D.
The GLAST satellite mission will study the gamma ray sky with considerably greater exposure than its predecessor EGRET. In addition, it will be capable of measuring the arrival directions of gamma...
Inverting the Angular Correlation Function (2007)
Scott Dodelson And, Scott Dodelson
The two point angular correlation function is an excellent measure of structure in the universe. To extract from it the three dimensional power spectrum, one must invert Limber's Equation. Here...
Combining Weak Lensing Tomography with Halo Clustering to Probe Dark Energy (2007)
Shapiro, Charles, Dodelson, Scott
Two methods of constraining the properties of dark energy are weak lensing tomography and cluster counting. Uncertainties in mass calibration of clusters can be reduced by using the properties of...
Galaxy-CMB Cross-Correlation as a Probe of Alternative Models of Gravity (2007)
Schmidt, Fabian, Liguori, Michele, Dodelson, Scott
Bekenstein's alternative to general relativity, TeVeS, reduces to Modified Newtonian Dynamics (MOND) in the galactic limit. On cosmological scales, the (potential well overdensity) relationship is...
A discriminating probe of gravity at cosmological scales (2007)
Zhang, Pengjie, Liguori, Michele, Bean, Rachel, Dodelson, Scott
The standard cosmological model is based on general relativity and includes dark matter and dark energy. An important prediction of this model is a fixed relationship between the gravitational...
Weak Lensing of Baryon Acoustic Oscillations (2007)
Vallinotto, Alberto, Dodelson, Scott, Schimd, Carlo, Uzan, Jean-Philippe
Baryon Acoustic Oscillations (BAO) have recently been observed in the distribution of distant galaxies. The height and location of the BAO peak are strong discriminators of cosmological parameters....
Can Cosmic Structure form without Dark Matter? (2006)
Dodelson, Scott, Liguori, Michele
One of the prime pieces of evidence for dark matter is the observation of large overdense regions in the universe. Since we know from the cosmic microwave background that the regions that contained...
What Can Gamma Ray Bursts Teach Us About Dark Energy? (2005)
It has been suggested that Gamma Ray Bursts (GRB) may enable the expansion rate of our Universe to be measured out to very high redshifts ($z \gsim 5$) just as type Ia supernovae have done at $z...
Is cosmology compatible with sterile neutrinos? (2005)
Dodelson, Scott, Melchiorri, Alessandro, Slosar, Anze
By combining data from cosmic microwave background (CMB) experiments (including the recent WMAP third year results), large scale structure (LSS) and Lyman-alpha forest observations, we constrain the...
Learning from the Scatter in Type Ia Supernovae (2005)
Dodelson, Scott, Vallinotto, Alberto
Type Ia Supernovae are standard candles so their mean apparent magnitude has been exploited to learn about the redshift-distance relationship. Besides intrinsic scatter in this standard candle,...
Reduced Shear Power Spectrum (2005)
Dodelson, Scott, Shapiro, Charles, White, Martin
Measurements of ellipticities of background galaxies are sensitive to the reduced shear, the cosmic shear divided by $(1-\kappa)$ where $\kappa$ is the projected density field. We compute the...
Kadota, Kenji, Dodelson, Scott, Hu, Wayne, Stewart, Ewan D.
Through a principal component analysis, we study how accurately CMB observables can constrain inflaton potentials in a model independent manner. We apply the general slow-roll approximation in our...
The Weak Lensing Bispectrum (2005)
Dodelson, Scott, Zhang, Pengjie
Weak gravitational lensing of background galaxies offers an excellent opportunity to study the intervening distribution of matter. While much attention to date has focused on the two-point function...
APS Neutrino Study: Report of the Neutrino Astrophysics and Cosmology Working Group (2004)
Barwick, Steve W., Beacom, John F., Cianciolo, Vince, Dodelson, Scott, Feng, Jonathan L., Fuller, George M., ...
In 2002, Ray Davis and Masatoshi Koshiba were awarded the Nobel Prize in Physics ``for pioneering contributions to astrophysics, in particular for the detection of cosmic neutrinos.'' However, while...
The Nonlinear Cosmological Matter Power Spectrum with Massive Neutrinos I: The Halo Model (2004)
Abazajian, Kevork, Switzer, Eric R., Dodelson, Scott, Heitmann, Katrin, Habib, Salman
Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses. We extend the framework of the halo model of cosmological nonlinear matter clustering to...
Beacom, John F., Bell, Nicole F., Dodelson, Scott
We consider the consequences for the relic neutrino abundance if extra neutrino interactions are allowed, e.g., the coupling of neutrinos to a light (compared to $m_\nu$) boson. For a wide range of...
Clusters of galaxies are powerful cosmological probes, particularly if their masses can be determined. One possibility for mass determination is to study the cosmic microwave background (CMB) on...
Halo Model Analysis of Cluster Statistics (2004)
Rozo, Eduardo, Dodelson, Scott, Frieman, Joshua A.
We use the halo model formalism to provide expressions for cluster abundances and bias, as well as estimates for the correlation matrix between these observables. Off-diagonal elements due to scatter...
Cluster Masses Accounting for Structure along the Line of Sight (2003)
Weak gravitational lensing of background galaxies by foreground clusters offers an excellent opportunity to measure cluster masses directly without using gas as a probe. One source of noise which...
Coherent Phase Argument for Inflation (2003)
Cosmologists have developed a phenomenally successful picture of structure in the universe based on the idea that the universe expanded exponentially in its earliest moments. There are three pieces...
Dodelson, Scott, Starkman, Glenn D.
A long-standing problem in astrophysics is to measure the mass associated with galaxies. Gravitational lensing provides one of the cleanest ways to make this measurement. To date, the most powerful...
A Horizon Ratio Bound for Inflationary Fluctuations (2003)
We demonstrate that the gravity wave background amplitude implies a robust upper bound on the ratio: \lambda / H^{-1} < e^60, where \lambda is the proper wavelength of fluctuations of interest and...
Primordial Gravity Waves and Weak Lensing (2003)
Dodelson, Scott, Rozo, Eduardo, Stebbins, Albert
Inflation produces a primordial spectrum of gravity waves in addition to the density perturbations which seed structure formation. We compute the signature of these gravity waves in the large scale...
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, ...
Neutrino Mass and Dark Energy from Weak Lensing (2002)
Abazajian, Kevork, Dodelson, Scott
Weak gravitational lensing of background galaxies by intervening matter directly probes the mass distribution in the universe. This distribution, and its evolution at late times, is sensitive to both...
Ahmed, Maqbool, Dodelson, Scott, Greene, Patrick B., Sorkin, Rafael
A variety of observations indicate that the universe is dominated by dark energy with negative pressure, one possibility for which is a cosmological constant. If the dark energy is a cosmological...
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., ...
Newberg, Heidi Jo, Yanny, Brian, Rockosi, Connie, Grebel, Eva K., Rix, Hans-Walter, Brinkmann, Jon, ...
Higher Order Moments of the Angular Distribution of Galaxies from Early SDSS Data (2001)
Szapudi, István, Frieman, Joshua A., Scoccimarro, Roman, Szalay, Alexander S., Connolly, Andrew J., Dodelson, Scott, ...
We present initial results for counts in cells statistics of the angular distribution of galaxies in early data from the Sloan Digital Sky Survey (SDSS). We analyze a rectangular stripe $2.5^\circ$...
Cosmic Microwave Background Anisotropies (2001)
Cosmic microwave background (CMB) temperature anisotropies have and will continue to revolutionize our understanding of cosmology. The recent discovery of the previously predicted acoustic peaks in...
Scale Dependent Spectral Index in Slow Roll Inflation (2001)
Dodelson, Scott, Stewart, Ewan
Recent observations suggest that the spectral index of the primordial perturbations is very close to unity, as expected in models of slow roll inflation. It is still possible for such models to...
Collaboration, SDSS, Scranton, Ryan, Johnston, David, Dodelson, Scott, Frieman, Joshua A., Connolly, Andy, ...
The angular distribution of galaxies encodes a wealth of information about large scale structure. Ultimately, the Sloan Digital Sky Survey (SDSS) will record the angular positions of order 10^8...
The Angular Correlation Function of Galaxies from Early SDSS Data (2001)
Collaboration, SDSS, Connolly, Andrew, Scranton, Ryan, Johnston, David, Dodelson, Scott, Eisenstein, Daniel, ...
The Sloan Digital Sky Survey is one of the first multicolor photometric and spectroscopic surveys designed to measure the statistical properties of galaxies within the local Universe. In this Letter...
The Angular Power Spectrum of Galaxies from Early SDSS Data (2001)
Collaboration, SDSS, Tegmark, Max, Dodelson, Scott, Eisenstein, Daniel, Narayanan, Vijay, Scoccimarro, Roman, ...
We compute the angular power spectrum C_l from 1.5 million galaxies in early SDSS data on large angular scales, l
Collaboration, SDSS, Szalay, Alexander S., Jain, Bhuvnesh, Matsubara, Takahiko, Scranton, Ryan, Vogeley, Michael S., ...
We present measurements of parameters of the 3-dimensional power spectrum of galaxy clustering from 222 square degrees of early imaging data in the Sloan Digital Sky Survey. The projected galaxy...
The 3D Power Spectrum from Angular Clustering of Galaxies in Early SDSS Data (2001)
Dodelson, Scott, Narayanan, Vijay K., Tegmark, Max, Scranton, Ryan, Budavari, Tamas, Connolly, Andrew, ...
Early photometric data from the Sloan Digital Sky Survey (SDSS) contain angular positions for 1.5 million galaxies. In companion papers, the angular correlation function $w(\theta)$ and 2D power...
Solving the Coincidence Problem: Tracking Oscillating Energy (2000)
Dodelson, Scott, Kaplinghat, Manoj, Stewart, Ewan
Recent cosmological observations strongly suggest that the universe is dominated by an unknown form of energy with negative pressure. Why is this dark energy density of order the critical density...
Cosmic Microwave Background: Past, Future, and Present (1999)
I explain the origin and evolution of anisotropies in the Cosmic Microwave Background (CMB) and argue that upcoming experiments will measure cosmological and fundamental parameters very accurately....
Kaplinghat, Manoj, Lopez, Robert E., Dodelson, Scott, Scherrer, Robert J.
A massive neutrino which decays after recombination (t > 10^{13} sec) into relativistic decay products produces an enhanced integrated Sachs-Wolfe effect, allowing constraints to be placed on such...
Inverting the Angular Correlation Function (1999)
Dodelson, Scott, Gaztanaga, Enrique
The two point angular correlation function is an excellent measure of structure in the universe. To extract from it the three dimensional power spectrum, one must invert Limber's Equation. Here we...
The Impact of Inhomogeneous Reionization on Cosmic Microwave Background Anisotropy (1998)
Knox, Lloyd, Scoccimarro, Roman, Dodelson, Scott
Hydrogen atoms in the Universe that initially formed at redshift z = 1100 were reionized at 5 < z < 60. It is likely that this transition proceeded through a mixed phase of partial ionization. We...
Cosmic Microwave Background Observations as a Way to Discriminate Among Inflation Models (1998)
Kinney, William H., Dodelson, Scott, Kolb, Edward W.
The upcoming satellite missions MAP and Planck will measure the spectrum of fluctuations in the Cosmic Microwave Background with unprecedented accuracy. We discuss the prospect of using these...
Precision Detection of the Cosmic Neutrino Background (1998)
Lopez, Robert E., Dodelson, Scott, Heckler, Andrew, Turner, Michael S.
In the standard Big Bang cosmology the canonical value for the ratio of relic neutrinos to CMB photons is 9/11. Within the framework of the Standard Model of particle physics there are small...
Likelihood Analysis of Galaxy Surveys (1997)
Dodelson, Scott, Hui, Lam, Jaffe, Andrew
One of the major goals of cosmological observations is to test theories of structure formation. The most straightforward way to carry out such tests is to compute the likelihood function L, the...
On the Computation of CMBR Anisotropies from Simulations of Topological Defects (1997)
Stebbins, Albert, Dodelson, Scott
Techniques for computing the CMBR anisotropy from simulations of topological defects are discussed with an eye to getting as much information from a simulation as possible. Here we consider the...
Cosmic microwave background measurements can discriminate among inflation models (1997)
Dodelson, Scott, Kinney, William H., Kolb, Edward W.
Quantum fluctuations during inflation may be responsible for temperature anisotropies in the cosmic microwave background (CMB). Observations of CMB anisotropies can be used to falsify many currently...
Anisotropies in the Cosmic Microwave Background: Theory (1997)
Anisotropies in the Cosmic Microwave Background (CMB) contain a wealth of information about the past history of the universe and the present values of cosmological parameters. I ouline some of the...
Comment on a Paper by Fang, Huang, and Wu (1996)
Dodelson, Scott, Stebbins, Albert
Before decoupling in the early universe, the tightly coupled photon/electron gas underwent acoustic oscillations. These oscillations should be visible today in the spectrum of anisotropies. Recently...
Cold Dark Matter Models (1996)
Dodelson, Scott, Gates, Evalyn, Turner, Michael S.
Motivated by inflation, the theory of big-bang nucleosynthesis and the quest for a deeper understanding of the fundamental forces and particles, a very successful paradigm for the development of...
Determining cosmic microwave background anisotropies in the presence of foregrounds (1995)
Separating foregrounds from the signal is one of the big challenges in cosmic microwave background (CMB) experiments. A simple way to estimate the CMB temperature in a given pixel is to fit for the...
Cold + Hot Dark Matter and the Cosmic Microwave Background (1995)
Dodelson, Scott, Gates, Evalyn, Stebbins, Albert
We examine the cosmic microwave background power spectrum for adiabatic models with a massive neutrino component. We present the results of a detailed numerical evolution of cold + hot dark matter...
Large Scale Structure Tests of Warm Dark Matter (1995)
Colombi, Stephane, Dodelson, Scott, Widrow, Lawrence M.
Warm dark matter (WDM) is an intriguing model of structure formation from the point of view of both cosmology and particle physics. We consider a one-parameter family of WDM models. The linear power...
Analysis of Small and Medium-Scale Cosmic Microwave Background Experiments (1994)
Dodelson, Scott, Kosowsky, Arthur
Anisotropies in the temperature of the cosmic microwave background have been detected on a range of scales by several different experiments. These anisotropies reflect the primordial spectrum of...
Testing Inflation with the Cosmic Microwave Background (1994)
Dodelson, Scott, Knox, Lloyd, Kolb, Edward W.
Cosmic microwave background (CMB) anisotropy may result from both scalar and tensor perturbations. For a sufficiently narrow range of angular scales, CMB perturbations can be characterized by four...
Noise Correlation in Cosmic Microwave Background Experiments (1994)
Dodelson, Scott, Kosowsky, Arthur, Myers, Steven T.
Many analyses of microwave background experiments neglect the correlation of noise in different frequency or polarization channels. We show that these correlations, should they be present, can lead...
Is a Massive Tau Neutrino Just What Cold Dark Matter Needs? (1994)
Dodelson, Scott, Gyuk, Geza, Turner, Michael S.
The cold dark matter (CDM) scenario for structure formation in the Universe is very attractive and has many successes; however, when its spectrum of density perturbations is normalized to the COBE...
Analysis of Small Scale MBR Anisotropy in the Presence of Foreground Contamination (1993)
Dodelson, Scott, Stebbins, Albert
Many of the current round of experiments searching for anisotropies in the MBR are confronting the problem of how to disentangle the cosmic signal from contamination due to galactic and intergalactic...
Re-Ionization and its Imprint on the Cosmic Microwave Background (1993)
Early reionization changes the pattern of anisotropies expected in the cosmic microwave background. To explore these changes, we derive from first principles the equations governing anisotropies,...
Sterile Neutrinos as Dark Matter (1993)
Dodelson, Scott, Widrow, Lawrence M.
The simplest model that can accomodate a viable nonbaryonic dark matter candidate is the standard electroweak theory with the addition of right-handed or sterile neutrinos. We reexamine this model...
Microwave Anisotropies in the Light of COBE (1993)
Dodelson, Scott, Jubas, Jay M.
The recent COBE measurement of anisotropies in the cosmic microwave background and the recent South Pole experiment of Gaier {\it et al.} offer an excellent opportunity to probe cosmological...
How Effective is the Effective Potential? (1992)
Dodelson, Scott, Gradwohl, Ben-Ami
Motivated by bubble nucleation in first order phase transitions, we question the validity of the effective potential for inhomogeneous configurations. In an attempt to get some insight into the...
Baryogenesis in an inflationary universe / (1988)
Thesis (Ph. D.)--Columbia University, 1988.