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Title:
Spectroscopic Target Selection for the Sloan Digital Sky Survey: The Luminous Red Galaxy Sample
Authors:
Eisenstein, Daniel J.; Annis, James; Gunn, James E.; Szalay, Alexander S.; Connolly, Andrew J.; Nichol, R. C.; Bahcall, Neta A.; Bernardi, Mariangela; Burles, Scott; Castander, Francisco J.; Fukugita, Masataka; Hogg, David W.; Ivezić, Željko; Knapp, G. R.; Lupton, Robert H.; Narayanan, Vijay; Postman, Marc; Reichart, Daniel E.; Richmond, Michael; Schneider, Donald P.; Schlegel, David J.; Strauss, Michael A.; SubbaRao, Mark; Tucker, Douglas L.; Vanden Berk, Daniel; Vogeley, Michael S.; Weinberg, David H.; Yanny, Brian
Affiliation:
AA(; Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.; Steward Observatory, 933 North Cherry Avenue, Tucson, AZ 85721.; Hubble Fellow.), AB(; Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510.), AC(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AD(; Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218.), AE(; Department of Physics and Astronomy, University of Pittsburgh, 3941 O'Hara Street, Pittsburgh, PA 15260.), AF(; Department of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15232.), AG(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AH(; Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.), AI(; Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510.), AJ(; Yale University, P. O. Box 208101, New Haven, CT 06520.; Universidad de Chile, Casilla 36-D, Santiago, Chile.), AK(; Institute for Advanced Study, Olden Lane, Princeton, NJ 08540.; Institute for Cosmic Ray Research, University of Tokyo, Midori, Tanashi, Tokyo 188-8502, Japan.), AL(; Institute for Advanced Study, Olden Lane, Princeton, NJ 08540.; Hubble Fellow.; Department of Physics, New York University, 4 Washington Place, New York, NY 10003.), AM(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AN(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AO(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AP(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AQ(; Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218.), AR(; Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.; Hubble Fellow.; Palomar Observatory, Mail Stop 105-24, California Institute of Technology, Pasadena, CA 91125.), AS(; Physics Department, Rochester Institute of Technology, 85 Lomb Memorial Drive, Rochester, NY 14623-5603.), AT(; Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802.), AU(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AV(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AW(; Enrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637.), AX(; Princeton University Observatory, Peyton Hall, Princeton, NJ 08544-1001.), AY(; Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510.), AZ(; Department of Physics, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104.), BA(; Department of Astronomy, Ohio State University, 140 West Eighteenth Avenue, Columbus, OH 43210.), BB(; Fermi National Accelerator Laboratory, P. O. Box 500, Batavia, IL 60510.)
Publication:
The Astronomical Journal, Volume 122, Issue 5, pp. 2267-2280. (AJ Homepage)
Publication Date:
11/2001
Origin:
UCP
AJ Keywords:
Cosmology: Observations, Galaxies: Clusters: General, Galaxies: Distances and Redshifts, Galaxies: Elliptical and Lenticular, cD, Cosmology: Large-Scale Structure of Universe, Surveys
DOI:
10.1086/323717
Bibliographic Code:
2001AJ....122.2267E

Abstract

We describe the target selection and resulting properties of a spectroscopic sample of luminous red galaxies (LRGs) from the imaging data of the Sloan Digital Sky Survey (SDSS). These galaxies are selected on the basis of color and magnitude to yield a sample of luminous intrinsically red galaxies that extends fainter and farther than the main flux-limited portion of the SDSS galaxy spectroscopic sample. The sample is designed to impose a passively evolving luminosity and rest-frame color cut to a redshift of 0.38. Additional, yet more luminous red galaxies are included to a redshift of ~0.5. Approximately 12 of these galaxies per square degree are targeted for spectroscopy, so the sample will number over 100,000 with the full survey. SDSS commissioning data indicate that the algorithm efficiently selects luminous (M*g~-21.4) red galaxies, that the spectroscopic success rate is very high, and that the resulting set of galaxies is approximately volume limited out to z=0.38. When the SDSS is complete, the LRG spectroscopic sample will fill over 1 h-3 Gpc3 with an approximately homogeneous population of galaxies and will therefore be well suited to studies of large-scale structure and clusters out to z=0.5.
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