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Observations and Theoretical Implications of the Large Separation Lensed Quasar SDSS J1004+4112
M. Oguri, N. Inada, C. R. Keeton +25
We study the recently discovered gravitational lens SDSS J1004+4112, the first quasar lensed by a cluster of galaxies. It consists of four images with a maximum separation of 14.62…
A Catalog of Compact Groups of Galaxies in the SDSS Commissioning Data
B. C. Lee, S. S. Allam, D. L. Tucker +20
Compact groups (CGs) of galaxies -- relatively poor groups of galaxies in which the typical separations between members is of the order of a galaxy diameter -- offer an exceptional…
A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
N. Inada, M. Oguri, B. Pindor +29
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures pre…
The 3D power spectrum of galaxies from the SDSS
M Tegmark, M Blanton, M Strauss +32
We measure the large-scale real-space power spectrum P(k) using a sample of 205,443 galaxies from the Sloan Digital Sky Survey, covering 2417 square degrees with mean redshift z~0.…
A Map of the Universe
J. Richard Gott, Mario Jurić, David Schlegel +5
We have produced a new conformal map of the universe illustrating recent discoveries, ranging from Kuiper belt objects in the Solar system, to the galaxies and quasars from the Slo…
A Snapshot Survey for Gravitational Lenses Among z>=4.0 Quasars: I. The z>5.7 Sample
Gordon T. Richards, Michael A. Strauss, Bartosz Pindor +7
Over the last few years, the Sloan Digital Sky Survey (SDSS) has discovered several hundred quasars with redshift between 4.0 and 6.4. Including the effects of magnification bias,…
Evolution of the Cluster Correlation Function
Neta A. Bahcall, Lei Hao, Paul Bode +1
We study the evolution of the cluster correlation function and its richness-dependence from z = 0 to z = 3 using large-scale cosmological simulations. A standard flat LCDM model wi…
The Sloan Digital Sky Survey Quasar Catalog II. First Data Release
Donald P. Schneider, Xiaohui Fan, Patrick B. Hall +13
We present the second edition of the Sloan Digital Sky Survey (SDSS) Quasar Catalog. The catalog consists of 16713 objects in the SDSS First Data Release (DR1) that have luminositi…
SDSS J0903+5028: A New Gravitational Lens
David E. Johnston, Gordon T. Richards, Joshua A. Frieman +22
We report the discovery of a new gravitationally lensed quasar from the Sloan Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS spectroscopy as a Lumi…
Physical Evidence for Dark Energy
R. Scranton, A. J. Connolly, R. C. Nichol +17
We present measurements of the angular cross-correlation between luminous red galaxies from the Sloan Digital Sky Survey and the cosmic microwave background temperature maps from t…
The dependence on environment of the color-magnitude relation of galaxies
David W. Hogg, Michael R. Blanton, Jarle Brinchmann +8
The distribution in color and absolute magnitude is presented for 55,158 galaxies taken from the Sloan Digital Sky Survey in the redshift range , as a function of gala…
Stellar and Dynamical Masses of Ellipticals in the Sloan Digital Sky Survey
N. Padmanabhan, U. Seljak, M. A. Strauss +9
We study the variation of the dark matter mass fraction of elliptical galaxies as a function of their luminosity, stellar mass, and size using a sample of 29,469 elliptical galaxie…
The Richness-Dependent Cluster Correlation Function: Early SDSS Data
Neta A. Bahcall, Feng Dong, Lei Hao +4
The cluster correlation function and its richness dependence are determined from 1108 clusters of galaxies -- the largest sample of clusters studied so far -- found in 379 deg^2 of…
Angular Clustering with Photometric Redshifts in the Sloan Digital Sky Survey: Bimodality in the Clustering Properties of Galaxies
Tamas Budavari, Andrew J. Connolly, Alexander S. Szalay +18
Understanding the clustering of galaxies has long been a goal of modern observational cosmology. Utilizing our photometric redshift technique a volume limited sample containing mor…
The First Data Release of the Sloan Digital Sky Survey
The SDSS collaboration, Kevork Abazajian
The Sloan Digital Sky Survey has validated and made publicly available its First Data Release. This consists of 2099 square degrees of five-band (u, g, r, i, z) imaging data, 186,2…
A Merged Catalog of Clusters of Galaxies from Early SDSS Data
Neta A. Bahcall, Timothy A. McKay, James Annis +13
We present a catalog of 799 clusters of galaxies in the redshift range z_est = 0.05 - 0.3 selected from ~400 deg^2 of early SDSS commissioning data along the celestial equator. The…
A Large, Uniform Sample of X-ray Emitting AGN: Selection Approach and an Initial Catalog from the ROSAT All-Sky and Sloan Digital Sky Surveys
Scott F. Anderson, Wolfgang Voges, Bruce Margon +25
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…
The velocity dispersion function of early-type galaxies
Ravi K. Sheth, M. Bernardi, P. L. Schechter +12
The distribution of early-type galaxy velocity dispersions, phi(sigma), is measured using a sample drawn from the SDSS database. Its shape differs significantly from that which one…
Early-type galaxies in the SDSS. IV. Colors and chemical evolution
M. Bernardi, R. K. Sheth, J. Annis +5
The colors and chemical abundances of early-type galaxies at redshifts z<0.3 are studied using a sample of nearly 9000 galaxies, selected from the Sloan Digital Sky Survey using mo…
Early-type galaxies in the SDSS. III. The Fundamental Plane
M. Bernardi, R. K. Sheth, J. Annis +7
A magnitude limited sample of nearly 9000 early-type galaxies, in the redshift range 0.01 < z < 0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral…
Early-type galaxies in the SDSS. II. Correlations between observables
M. Bernardi, R. K. Sheth, J. Annis +7
A magnitude limited sample of nearly 9000 early-type galaxies, in the redshift range 0.01 < z < 0.3, was selected from the Sloan Digital Sky Survey using morphological and spectral…
A Survey of z>5.7 Quasars in the Sloan Digital Sky Survey II: Discovery of Three Additional Quasars at z>6
Xiaohui Fan, Michael A. Strauss, Donald P. Schneider +14
We present the discovery of three new quasars at z>6 in 1300 deg^2 of SDSS imaging data, J114816.64+525150.3 (z=6.43), J104845.05+463718.3 (z=6.23) and J163033.90+401209.6 (z=6.05)…
The Morphological Butcher-Oemler effect in the SDSS Cut&Enhance Galaxy Cluster Catalog
Tomotsugu Goto, Sadanori Okamura, Masafumi Yagi +14
We investigate the evolution of the fractions of late type cluster galaxies as a function of redshift, using one of the largest, most uniform cluster samples available. The sample…
On Departures From a Power Law in the Galaxy Correlation Function
Idit Zehavi, David H. Weinberg, Zheng Zheng +7
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 gal…