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The Chandra Deep Field North Survey. VIII. X-ray Constraints on Spiral Galaxies from 0.4 < z < 1.5
A. E. Hornschemeier, W. N. Brandt, D. M. Alexander +5
We present a statistical X-ray study of spiral galaxies in the Hubble Deep Field-North and its Flanking Fields using the Chandra Deep Field North 1 Ms dataset. We find that approxi…
SDSS J124602.54+011318.8: A Highly Luminous Optical Transient at z=0.385
D. E. Vanden Berk, B. C. Lee, B. C. Wilhite +13
We report the discovery of a highly luminous optical transient (OT), SDSS J124602.54+011318.8, associated with a galaxy at a redshift of 0.385. In this paper we consider the possib…
The Optical, Infrared and Radio Properties of Extragalactic Sources Observed by SDSS, 2MASS and FIRST Surveys
Z. Ivezic, R. H. Becker, M. Blanton +19
We positionally match sources observed by the Sloan Digital Sky Survey (SDSS), the Two Micron All Sky Survey (2MASS), and the Faint Images of the Radio Sky at Twenty-cm (FIRST) sur…
The Sloan Digital Sky Survey Quasar Catalog I. Early Data Release
Donald P. Schneider, Gordon T. Richards, Xiaohui Fan +9
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 publi…
Early-type galaxies in the SDSS
M. Bernardi, R. K. Sheth, J. Annis +28
A 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 criteria. The sample…
Cataclysmic Variables from SDSS I. The First Results
P. Szkody, S. F. Anderson, M. Agueros +27
The commissioning year of the Sloan Digital Sky Survey has demonstrated that many cataclysmic variables have been missed in previous surveys with brighter limits. We report the ide…
L Dwarfs Found in Sloan Digital Sky Survey Commissioning Data II. Hobby-Eberly Telescope Observations
Donald P. Schneider, Gillian R. Knapp, Suzanne L. Hawley +21
Low dispersion optical spectra have been obtained with the Hobby-Eberly Telescope of 22 very red objects found in early imaging data from the Sloan Digital Sky Survey. The objects…
J-Band Spectroscopy of the z = 5.74 BAL QSO SDSSp J104433.04-012502.2
R. W. Goodrich, R. Campbell, F. Chaffee +8
We use the NIRSPEC near-IR spectrometer on Keck II to obtain moderate resolution (R = 1540) spectroscopy that shows conclusively that the C IV emission line in the z = 5.74 quasar…
Evidence for Reionization at z ~ 6: Detection of a Gunn-Peterson Trough in a z=6.28 Quasar
Robert H. Becker, Xiaohui Fan, Richard L. White +27
We present moderate resolution Keck spectroscopy of quasars at z=5.82, 5.99 and 6.28, discovered by the Sloan Digital Sky Survey (SDSS). We find that the Ly Alpha absorption in the…
A Survey of z>5.8 Quasars in the Sloan Digital Sky Survey I: Discovery of Three New Quasars and the Spatial Density of Luminous Quasars at z~6
Xiaohui Fan, Vijay K. Narayanan, Robert H. Lupton +10
We present the results from a survey of i-dropout objects selected from ~1550 deg^2 of multicolor imaging data from the Sloan Digital Sky Survey, to search for luminous quasars at…
Infrared Photometry of Late-M, L, and T Dwarfs
S. K. Leggett, D. A. Golimowski, X. Fan +2
We present ZJHKL'M' photometry of a sample of 58 late-M, L, and T dwarfs, most of which are identified from the Sloan Digital Sky Survey and the Two Micron All-Sky Survey. Near-inf…
Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample
D. J. Eisenstein, J. Annis, J. E. Gunn +25
We describe the target selection and resulting properties of a spectroscopic sample of luminous, red galaxies (LRG) from the imaging data of the Sloan Digital Sky Survey (SDSS). Th…
Towards Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
T. R. Geballe, G. R. Knapp, S. K. Leggett +2
We present 0.6-2.5um, R~400 spectra of twenty-seven cool, low luminosity stars and substellar objects. Based on these and previously published spectra we develop a preliminary spec…
Color Separation of Galaxy Types in the Sloan Digital Sky Survey Imaging Data
Iskra Strateva, Zeljko Ivezic, Gillian R. Knapp +2
We study the optical colors of 147,920 galaxies brighter than g* = 21, observed in five bands by the Sloan Digital Sky Survey (SDSS) over ~100 sq. deg. of high Galactic latitude sk…
Extreme BAL Quasars from the Sloan Digital Sky Survey
Patrick B. Hall, J. E. Gunn, G. R. Knapp +16
The Sloan Digital Sky Survey has discovered a population of broad absorption line quasars with various extreme properties. Many show absorption from metastable states of FeII with…
Analysis of Systematic Effects and Statistical Uncertainties in Angular Clustering of Galaxies from Early SDSS Data
SDSS Collaboration, Ryan Scranton, David Johnston +21
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…
Photometric Redshifts of Quasars
Gordon T. Richards, Michael A. Weinstein, Donald P. Schneider +3
We demonstrate that the design of the Sloan Digital Sky Survey (SDSS) filter system and the quality of the SDSS imaging data are sufficient for determining accurate and precise pho…
Photometric redshifts from reconstructed QSO templates
Tamas Budavari, Istvan Csabai, Alexander S. Szalay +2
From SDSS commissioning photometric and spectroscopic data, we investigate the utility of photometric redshift techniques to the task of estimating QSO redshifts. We consider empir…
Solar System Objects Observed in the SDSS Commissioning Data
Z. Ivezic, S. Tabachnik, R. Rafikov +4
We discuss measurements of the properties of about 10,000 asteroids detected in 500 deg2 of sky in the Sloan Digital Sky Survey (SDSS) commissioning data. The moving objects are de…
Statistical Properties of Bright Galaxies in the SDSS Photometric System
K. Shimasaku, M. Fukugita, M. Doi +5
We investigate the photometric properties of 456 bright galaxies using imaging data recorded during the commissioning phase of the Sloan Digital Sky Survey (SDSS). Morphological cl…
Sloan Digital Sky Survey Multicolor Observations of GRB010222
Brian C. Lee, Douglas L. Tucker, Daniel E. Vanden Berk +25
The discovery of an optical counterpart to GRB010222 (detected by BeppoSAX; Piro 2001) was announced 4.4 hrs after the burst by Henden (2001a). The Sloan Digital Sky Survey's 0.5m…
A 250 GHz Survey of High Redshift QSOs from the Sloan Digital Sky Survey
C. L. Carilli, F. Bertoldi, M. Rupen +8
We present observations at 250 GHz (1.2 mm), 43 GHz, and 1.4 GHz of a sample of 41 QSOs at z > 3.7 found in the Sloan Digital Sky Survey. We detect 16 sources with a 250 GHz flux d…
Broad Absorption Line Quasars in the Sloan Digital Sky Survey with VLA-FIRST Radio Detections
Kristen Menou, Daniel E. Vanden Berk, Zeljko Ivezic +12
We present 13 Broad Absorption Line (BAL) quasars, including 12 new objects, which were identified in the Sloan Digital Sky Survey (SDSS) and matched within 2'' to sources in the F…
A New Very Cool White Dwarf Discovered by the Sloan Digital Sky Survey
H. C. Harris, B. M. S. Hansen, J. Liebert +33
Early data taken during commissioning of the SDSS have resulted in the discovery of a very cool white dwarf. It appears to have stronger collision induced absorption from molecular…