The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: baryon acoustic oscillations in the Data Release 9 spectroscopic galaxy sample
Lauren AndersonDepartment of Astronomy, University of Washington, Box 351580, Seattle, WA 98195, USAÉ. AubourgCommissariat à l'Énergie Atomique et aux Énergies AlternativesS. BaileyLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USADmitry BizyaevMichael R. BlantonCenter for Cosmology and Particle Physics, New York University, New York, NY 10003, USAA. BoltonDepartment of Physics and Astronomy, University of Utah, UT, 84112, USAJ. BrinkmannJoel R. BrownsteinDepartment of Physics and Astronomy, University of Utah, UT, 84112, USAA. BurdenInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXAntonio J. CuestaDepartment of Physics, Yale University, 260 Whitney Avenue New Haven, CT, 06520, USAL. A. N. da CostaLaboratório Interinstitucional de e-Astronomia – LineA, Rua Gal. José Cristino 77, Rio de Janeiro, RJ – 20921-400, BrazilKyle DawsonDepartment of Physics and Astronomy, University of Utah, UT, 84112, USAR. de PutterInstituto de Fisica Corpuscular, Universidad de Valencia-CSIC, SpainDaniel J. EisensteinHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAJames E. GunnDepartment of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USAHong GuoDepartment of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USAJ.–Ch. HamiltonSorbonne Paris CitéPaul HardingDepartment of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USAShirley HoLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAKlaus HonscheidDepartment of Physics and CCAPP, Ohio State University, Columbus, OH 43210, USAEyal KazinCentre for Astrophysics and Supercomputing, Swinburne University of Technology, PO Box 218, Hawthorn, Victoria 3122, AustraliaD. KirkbyDepartment of Physics and Astronomy, UC Irvine, 4129 Frederick Reines Hall, Irvine, CA, 92697, USAJean‐Paul KneibLaboratoire d’Astrophysique de MarseilleAntoine LabatieLaboratoire Astroparticule et Cosmologie, Universite Paris, 7 Denis Diderot, Paris, FranceCraig LoomisDepartment of Astrophysical Sciences, Princeton University, Ivy Lane, Princeton, NJ, 08544, USAR. LuptonDepartment of Physics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USAElena MalanushenkoViktor MalanushenkoRachel MandelbaumApache Point Observatory, PO Box 59, Sunspot, NM 88349-0059, USAMarc ManeraInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXClaudia MarastonInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXCameron K. McBrideHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAKushal MehtaSteward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ, 85721, USAOlga MenaInstituto de Fisica Corpuscular, Universidad de Valencia-CSIC, SpainFrancesco MontesanoMax-Planck-Institut für extraterrestrische Physik, Postfach 1312, Giessenbachstr., 85748, Garching, GermanyDemitri MunaCenter for Cosmology and Particle Physics, New York University, New York, NY 10003, USARobert C. NicholInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXSebastián E. NuzaLeibniz-Institut für Astrophysik Potsdam (AIP), An der Sternwarte 16, 14482, Potsdam, GermanyMatthew D. OlmsteadDepartment of Physics and Astronomy, University of Utah, UT, 84112, USAD. OravetzNikhil PadmanabhanDepartment of Physics, Yale University, 260 Whitney Avenue New Haven, CT, 06520, USAN. Palanque‐DelabrouilleInstitut de Recherche sur les Lois Fondamentales de l'UniversKaike PanJohn K. ParejkoDepartment of Physics, Yale University, 260 Whitney Avenue New Haven, CT 06520, USAIsabelle PârisUniversité Paris 6, Institut d'Astrophysique de Paris, UMR7095-CNRS, 98bis Boulevard Arago, 75014, Paris, FranceWill J. PercivalInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXP. PetitjeanSorbonne UniversitéFrancisco PradaCampus of International Excellence UAM+CSIC, Cantoblanco, E-28049, Madrid, SpainBeth ReidNational Abastumani Astrophysical Observatory, Ilia State University, 2A Kazbegi Ave., GE-1060, Tbilisi, GeorgiaNatalie A. RoeLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAA.J. RossInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXNicholas P. RossLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USALado SamushiaInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth, PO1 3FXAriel G. SánchezMax-Planck-Institut für extraterrestrische Physik, Postfach 1312, Giessenbachstr., 85748, Garching, GermanyDavid J. SchlegelLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USADonald P. SchneiderDepartment of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA, 16802, USAClaudia G. ScóccolaDpto. Astrofísica, Universidad de La Laguna (ULL), E-38206, La Laguna, Tenerife, SpainHee‐Jong SeoBerkeley Center for Cosmological Physics, LBL and Department of Physics, University of California, Berkeley, CA, 94720, USAE. S. SheldonBrookhaven National Laboratory, Bldg 510, Upton, NY, 11973, USAAudrey SimmonsR. SkibbaSteward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ, 85721, USAMichael A. StraussDepartment of Astrophysical Sciences, Princeton University, Ivy Lane, Princeton, NJ, 08544, USAM. E. C. SwansonHarvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USAD. ThomasInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXJeremy L. TinkerCenter for Cosmology and Particle Physics, New York University, New York, NY 10003, USARita TojeiroInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth PO1 3FXM. Vargas-MagañaAPC, Astroparticule et Cosmologie, Université Paris Diderot, CNRS/IN2P3, CEA/Irfu, Observatoire de Paris, Sorbonne Paris Cité, 10, rue Alice Domon & Léonie Duquet, 75205, Paris Cedex 13, FranceLicia VerdeUniversitat de BarcelonaChristian WagnerICC, University of Barcelona (IEEC-UB), Marti i Franques 1, Barcelona 08028, SpainDavid A. WakeYale Center for Astronomy and Astrophysics, Yale University, New Haven, CT, 06511, USAB. A. WeaverCenter for Cosmology and Particle Physics, New York University, New York, NY 10003, USADavid H. WeinbergDepartment of Astronomy and CCAPP, Ohio State University, Columbus, OH, USAMartin WhiteDepartment of Astronomy, 601 Campbell Hall, University of California at Berkeley, Berkeley, CA, 94720, USAXiaoying XuSteward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ, 85721, USAChristophe YècheCEA, Centre de Saclay, IRFU, 91191, Gif-sur-Yvette, FranceIdit ZehaviDepartment of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USAGong‐Bo ZhaoInstitute of Cosmology & Gravitation, Dennis Sciama Building, University of Portsmouthnue, Portsmouth, PO1 3FX
2012en
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We present measurements of galaxy clustering from the Baryon Oscillation Spectroscopic Survey (BOSS), which is part of the Sloan Digital Sky Survey III (SDSS-III). These use the Data Release 9 (DR9) CMASS sample, which contains 264 283 massive galaxies covering 3275 square degrees with an effective redshift z = 0.57 and redshift range 0.43 < z < 0.7. Assuming a concordance CDM cosmological model, this sample covers an effective volume of 2.2 Gpc 3 , and represents the largest sample of the Universe ever surveyed at this density, n 3 10 -4 h -3 Mpc 3 . We measure the angle-averaged galaxy correlation function and power spectrum, including density-field reconstruction of the baryon acoustic oscillation (BAO) feature. The acoustic features are detected at a significance of 5 in both the correlation function and power spectrum. Combining with the SDSS-II luminous red galaxy sample, the detection significance increases to 6.7 . Fitting for the position of the acoustic features measures the distance to z = 0.57 relative to the sound horizon D V /r s = 13.67 0.22 at z = 0.57. Assuming a fiducial sound horizon of 153.19 Mpc, which matches cosmic microwave background constraints, this corresponds to a distance D V (z = 0.57) = 2094 34 Mpc. At 1.7 per cent, this is the most precise distance constraint ever obtained from a galaxy survey. We place this result alongside previous BAO measurements in a cosmological distance ladder and find excellent agreement with the current supernova measurements. We use these distance measurements to constrain various cosmological models, finding continuing support for a flat Universe with a cosmological constant.
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