Baryon acoustic oscillations in the Sloan Digital Sky Survey Data Release 7 galaxy sample
dc.contributor.author | Percival, Will J. | en_US |
dc.contributor.author | Reid, Beth A. | en_US |
dc.contributor.author | Eisenstein, Daniel J. | en_US |
dc.contributor.author | Bahcall, Neta A. | en_US |
dc.contributor.author | Budavari, Tamas | en_US |
dc.contributor.author | Frieman, Joshua A. | en_US |
dc.contributor.author | Fukugita, Masataka | en_US |
dc.contributor.author | Gunn, James E. | en_US |
dc.contributor.author | Ivezić, Zcaron;eljko | en_US |
dc.contributor.author | Knapp, Gillian R. | en_US |
dc.contributor.author | Kron, Richard G. | en_US |
dc.contributor.author | Loveday, Jon | en_US |
dc.contributor.author | Lupton, Robert H. | en_US |
dc.contributor.author | Mckay, Timothy A. | en_US |
dc.contributor.author | Meiksin, Avery | en_US |
dc.contributor.author | Nichol, Robert C. | en_US |
dc.contributor.author | Pope, Adrian C. | en_US |
dc.contributor.author | Schlegel, David J. | en_US |
dc.contributor.author | Schneider, Donald P. | en_US |
dc.contributor.author | Spergel, David N. | en_US |
dc.contributor.author | Stoughton, Chris | en_US |
dc.contributor.author | Strauss, Michael A. | en_US |
dc.contributor.author | Szalay, Alexander S. | en_US |
dc.contributor.author | Tegmark, Max | en_US |
dc.contributor.author | Vogeley, Michael S. | en_US |
dc.contributor.author | Weinberg, David H. | en_US |
dc.contributor.author | York, Donald G. | en_US |
dc.contributor.author | Zehavi, Idit | en_US |
dc.date.accessioned | 2011-01-13T19:38:35Z | |
dc.date.available | 2011-01-13T19:38:35Z | |
dc.date.issued | 2010-02-01 | en_US |
dc.identifier.citation | Percival, Will J.; Reid, Beth A.; Eisenstein, Daniel J.; Bahcall, Neta A.; Budavari, Tamas; Frieman, Joshua A.; Fukugita, Masataka; Gunn, James E.; Ivezić, Zcaron;eljko; Knapp, Gillian R.; Kron, Richard G.; Loveday, Jon; Lupton, Robert H.; Mckay, Timothy A.; Meiksin, Avery; Nichol, Robert C.; Pope, Adrian C.; Schlegel, David J.; Schneider, Donald P.; Spergel, David N.; Stoughton, Chris; Strauss, Michael A.; Szalay, Alexander S.; Tegmark, Max; Vogeley, Michael S.; Weinberg, David H.; York, Donald G.; Zehavi, Idit; (2010). "Baryon acoustic oscillations in the Sloan Digital Sky Survey Data Release 7 galaxy sample." Monthly Notices of the Royal Astronomical Society 401(4): 2148-2168. <http://hdl.handle.net/2027.42/78610> | en_US |
dc.identifier.issn | 0035-8711 | en_US |
dc.identifier.issn | 1365-2966 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/78610 | |
dc.description.abstract | The spectroscopic Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) galaxy sample represents the final set of galaxies observed using the original SDSS target selection criteria. We analyse the clustering of galaxies within this sample, including both the luminous red galaxy and main samples, and also include the 2-degree Field Galaxy Redshift Survey data. In total, this sample comprises 893 319 galaxies over 9100 deg 2 . Baryon acoustic oscillations (BAO) are observed in power spectra measured for different slices in redshift; this allows us to constrain the distance–redshift relation at multiple epochs. We achieve a distance measure at redshift z = 0.275 , of r s ( z d )/ D V (0.275) = 0.1390 ± 0.0037 (2.7 per cent accuracy), where r s ( z d ) is the comoving sound horizon at the baryon-drag epoch, D V ( z ) ≡[(1 + z ) 2 D 2 A cz / H ( z )] 1/3 , D A ( z ) is the angular diameter distance and H ( z ) is the Hubble parameter. We find an almost independent constraint on the ratio of distances D V (0.35)/ D V (0.2) = 1.736 ± 0.065 , which is consistent at the 1.1σ level with the best-fitting Λ cold dark matter model obtained when combining our z = 0.275 distance constraint with the Wilkinson Microwave Anisotropy Probe 5-year ( WMAP 5) data. The offset is similar to that found in previous analyses of the SDSS DR5 sample, but the discrepancy is now of lower significance, a change caused by a revised error analysis and a change in the methodology adopted, as well as the addition of more data. Using WMAP 5 constraints on Ω b h 2 and Ω c h 2 , and combining our BAO distance measurements with those from the Union supernova sample, places a tight constraint on Ω m = 0.286 ± 0.018 and H 0 = 68.2 ± 2.2 km s −1 Mpc −1 that is robust to allowing Ω k ≠ 0 and w ≠−1 . This result is independent of the behaviour of dark energy at redshifts greater than those probed by the BAO and supernova measurements. Combining these data sets with the full WMAP 5 likelihood constraints provides tight constraints on both Ω k =−0.006 ± 0.008 and w =−0.97 ± 0.10 for a constant dark energy equation of state. | en_US |
dc.format.extent | 1253087 bytes | |
dc.format.extent | 3106 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.publisher | Blackwell Publishing Ltd | en_US |
dc.subject.other | Cosmology: Observations | en_US |
dc.subject.other | Distance Scale | en_US |
dc.subject.other | Large-scale Structure of Universe | en_US |
dc.title | Baryon acoustic oscillations in the Sloan Digital Sky Survey Data Release 7 galaxy sample | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Astronomy | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Departments of Physics and Astronomy, University of Michigan, Ann Arbor, MI 48109, USA | en_US |
dc.contributor.affiliationother | Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama building, Portsmouth P01 3FX | en_US |
dc.contributor.affiliationother | Institute of Space Sciences (CSIC-IEEC), UAB, Barcelona 08193, Spain | en_US |
dc.contributor.affiliationother | Institute for Sciences of the Cosmos (ICC), University of Barcelona, Barcelona 08028, Spain | en_US |
dc.contributor.affiliationother | Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA | en_US |
dc.contributor.affiliationother | Steward Observatory, University of Arizona, 933 N. Cherry Ave., Tucson, AZ 85121, USA | en_US |
dc.contributor.affiliationother | Department of Physics and Astronomy, The Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218, USA | en_US |
dc.contributor.affiliationother | Particle Astrophysics Center, Fermilab, PO Box 500, Batavia, IL 60510, USA | en_US |
dc.contributor.affiliationother | Kavli Institute for Cosmological Physics, Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL 60637, USA | en_US |
dc.contributor.affiliationother | Institute for Cosmic Ray Research, University of Tokyo, Kashiwa 277-8582, Japan | en_US |
dc.contributor.affiliationother | Department of Astronomy, University of Washington Box 351580, Seattle, WA 98195, USA | en_US |
dc.contributor.affiliationother | Department of Astronomy and Astrophysics, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637, USA | en_US |
dc.contributor.affiliationother | Astronomy Centre, University of Sussex, Falmer, Brighton BN1 9QH | en_US |
dc.contributor.affiliationother | SUPA; Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ | en_US |
dc.contributor.affiliationother | Los Alamos National Laboratory, PO Box 1663, Los Alamos, NM 87545, USA | en_US |
dc.contributor.affiliationother | Lawrence Berkeley National Lab, 1 Cyclotron Road, MS 50R5032, Berkeley, CA 94720, USA | en_US |
dc.contributor.affiliationother | Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802, USA | en_US |
dc.contributor.affiliationother | Princeton Center for Theoretical Science, Princeton University, Jadwin Hall, Princeton, NJ 08542, USA | en_US |
dc.contributor.affiliationother | Fermilab, PO Box 500, Batavia, IL 60510, USA | en_US |
dc.contributor.affiliationother | Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA | en_US |
dc.contributor.affiliationother | Department of Physics, Drexel University, Philadelphia, PA 19104, USA | en_US |
dc.contributor.affiliationother | Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA | en_US |
dc.contributor.affiliationother | Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, USA | en_US |
dc.contributor.affiliationother | Department of Astronomy, Case Western Reserve University, Cleveland, OH 44106, USA | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/78610/1/j.1365-2966.2009.15812.x.pdf | |
dc.identifier.doi | 10.1111/j.1365-2966.2009.15812.x | en_US |
dc.identifier.source | Monthly Notices of the Royal Astronomical Society | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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