The Sixth Data Release of the Sloan Digital Sky Survey
Jennifer Adelman-McCarthyFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Marcel A. AgüerosColumbia Astrophysics Laboratory, 550 West 120th Street, New York, NY 10027S. AllamDepartment of Physics and Astronomy, University of Wyoming, Laramie, WY 82071Carlos Allende PrietoMcDonald Observatory and Department of Astronomy, The University of Texas, 1 University Station, C1400, Austin, TX 78712-0259Kurt S. AndersonApache Point Observatory, P.O. Box 59, Sunspot, NM 88349Scott F. AndersonDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195James AnnisFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Neta A. BahcallDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544C. A. L. Bailer‐JonesMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyI. K. BaldryAstrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf Birkenhead CH41 1LD, UKJohn C. BarentineMcDonald Observatory and Department of Astronomy, The University of Texas, 1 University Station, C1400, Austin, TX 78712-0259Bruce A. BassettSouth African Astronomical Observatory, Observatory, Cape Town, South AfricaA. C. BeckerDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195Timothy C. BeersDepartment of Physics and Astrophysics, Center for the Study of Cosmic Evolution(CSCE) , and Joint Institute for Nuclear Astrophysics (JINA), Michigan State University, East Lansing, MI 48824Eric F. BellMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyAndreas A. BerlindCenter for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003Mariangela BernardiDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104Michael R. BlantonCenter for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003John J. BochanskiDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195William N. BoroskiFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510J. BrinchmannCentro de Astrofísica da Universidade do Porto, Rua das Estrelas-4150-762 Porto, PortugalJ. BrinkmannRobert J. BrunnerDepartment of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801Tamás BudaváriCenter for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218Samuel CarlilesCenter for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218Michael A. CarrDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544F. J. CastanderInstitut de Ciències de l’Espai (IEEC/CSIC), Campus UAB, E-08193 Bellaterra, Barcelona, SpainDavid CinabroDepartment of Physics and Astronomy, Wayne State University, Detroit, MI 48202R. J. CoolKevin R. CoveyHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge MA 02138István CsabaiCenter for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218Carlos E. CunhaDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637James R. A. DavenportDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195B. DildayDepartment of Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637Mamoru DoiInstitute of Astronomy, Graduate School of Science, The University of Tokyo, 2-21-1 Osawa, Mitaka, 181-0015, JapanDaniel J. EisensteinMichael L. EvansDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195Xiaohui FanDouglas P. FinkbeinerHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge MA 02138S. D. FriedmanSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218Joshua A. FriemanDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637M. FukugitaInstitute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa, Kashiwa City, Chiba 277-8582, JapanB. T. GänsickeDepartment of Physics, University of Warwick, Coventry CV4 7AL, UKEvalyn GatesDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637Bruce GillespieKarl GlazebrookCentre for Astrophysics and Supercomputing, Swinburne University of Technology, P.O. Box 218, Hawthorn, VIC 3122, AustraliaJim GrayMicrosoft Research, 455 Market Street, Suite 1690, San Francisco, CA 94105E. K. GrebelAstronomical Institute, Department of Physics and Astronomy, University of Basel, Venusstrasse 7, CH-4102 Binningen, SwitzerlandJames E. GunnDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544Vijay K. GurbaniBell Laboratories, Alcatel-Lucent, 2701 Lucent Lane, Rm. 9F-546, Lisle, IL 60532Patrick B. HallDepartment of Physics and Astronomy, York University, 4700 Keele Street, Toronto, ON, M3J 1P3, CanadaPaul HardingDepartment of Astronomy, Case Western Reserve University, Cleveland, OH 44106Michael HarvanekLowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001Suzanne L. HawleyDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195J. J. E. HayesInstitute for Astronomy and Computational Sciences, Physics Department, Catholic University of America, Washington, DC 20064Timothy M. HeckmanCenter for Astrophysical Sciences, Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218John S. HendryFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Robert B. HindsleyRemote Sensing Division, Naval Research Laboratory, Code 7215, 4555 Overlook Avenue SW, Washington, DC 20392Christopher M. HirataInstitute for Advanced Study, Einstein Drive, Princeton, NJ 08540Craig J. HoganDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195David W. HoggCenter for Cosmology and Particle Physics, Department of Physics, New York University, 4 Washington Place, New York, NY 10003Joseph HydeDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104Shinichi IchikawaNational Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanŽeljko IvezićDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195Sebastian JesterMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyJennifer A. JohnsonDepartment of Astronomy, Ohio State University, 140 West 18th Avenue, Columbus, OH 43210A. M. JorgensenElectrical Engineering Department, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801Mario JurićInstitute for Advanced Study, Einstein Drive, Princeton, NJ 08540S. KentFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510R. KeßlerEnrico Fermi Institute, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637S. J. KleinmanGemini Observatory, 670 N. A’ohoku Place, Hilo, HI 96720G. R. KnappDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544R. G. KronDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637J. KrzesińskiApache Point Observatory, P.O. Box 59, Sunspot, NM 88349N. KuropatkinFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Donald Q. LambDepartment of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637Hubert LampeitlSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218Svetlana LebedevaFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Young Sun LeeDepartment of Physics and Astrophysics, Center for the Study of Cosmic Evolution(CSCE) , and Joint Institute for Nuclear Astrophysics (JINA), Michigan State University, East Lansing, MI 48824R. French LegerFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Sébastien LépineDepartment of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024M. LimaDepartment of Physics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637H. LinFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510Daniel C. LongCraig LoomisDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544J. LovedayAstronomy Centre, University of Sussex, Falmer, Brighton BN1 9QH, UKRobert H. LuptonDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544O. MalanushenkoViktor MalanushenkoRachel MandelbaumHubble FellowB. MargonDepartment of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064J. MarrinerFermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510David Martínez‐DelgadoInstituto de Astrofisica de Canarias, La Laguna, SpainTakahiko MatsubaraDepartment of Physics and Astrophysics, Nagoya University, Chikusa, Nagoya 464-8602, JapanP. McGeheeIPAC, MS 220-6, California Institute of Technology, Pasadena, CA 91125Timothy A. McKayDepartment of Physics, University of Michigan, 500 East University Avenue, Ann Arbor, MI 48109Avery MeiksinSUPA, Institute for Astronomy, Royal Observatory, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, UKHeather MorrisonDepartment of Astronomy, Case Western Reserve University, Cleveland, OH 44106Jeffrey A. MunnUS Naval Observatory, Flagstaff Station, 10391 West Naval Observatory Road, Flagstaff, AZ 86001-8521Reiko NakajimaDepartment of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104
2008en
ABI
Аннотация
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 parameters of roughly 287 million objects over 9583 deg², including scans over a large range of Galactic latitudes and longitudes. The survey also includes 1.27 million spectra of stars, galaxies, quasars, and blank sky (for sky subtraction) selected over 7425 deg². This release includes much more stellar spectroscopy than was available in previous data releases and also includes detailed estimates of stellar temperatures, gravities, and metallicities. The results of improved photometric calibration are now available, with uncertainties of roughly 1% in g, r, i, and z, and 2% in u, substantially better than the uncertainties in previous data releases. The spectra in this data release have improved wavelength and flux calibration, especially in the extreme blue and extreme red, leading to the qualitatively better determination of stellar types and radial velocities. The spectrophotometric fluxes are now tied to point-spread function magnitudes of stars rather than fiber magnitudes. This gives more robust results in the presence of seeing variations, but also implies a change in the spectrophotometric scale, which is now brighter by roughly 0.35 mag. Systematic errors in the velocity dispersions of galaxies have been fixed, and the results of two independent codes for determining spectral classifications and redshifts are made available. Additional spectral outputs are made available, including calibrated spectra from individual 15 minute exposures and the sky spectrum subtracted from each exposure. We also quantify a recently recognized underestimation of the brightnesses of galaxies of large angular extent due to poor sky subtraction; the bias can exceed 0.2 mag for galaxies brighter than r = 14 mag.
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