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The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering
文献类型：期刊论文
| 作者 | Reid, Beth A.1; Samushia, Lado2,3; White, Martin1,4,5; Percival, Will J.2; Manera, Marc2; Padmanabhan, Nikhil6; Ross, Ashley J.2; Sanchez, Ariel G.7; Bailey, Stephen1; Bizyaev, Dmitry8 |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2012-11-01 |
| 卷号 | 426期号:4页码:2719-2737 |
| 关键词 | galaxies: haloes galaxies: statistics cosmological parameters large-scale structure of Universe |
| 英文摘要 | We analyse the anisotropic clustering of massive galaxies from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) sample, which consists of 264-283 galaxies in the redshift range 0.43 < z < 0.7 spanning 3275 deg(2). Both peculiar velocities and errors in the assumed redshiftdistance relation (AlcockPaczynski effect) generate correlations between clustering amplitude and orientation with respect to the line of sight. Together with the sharp baryon acoustic oscillation (BAO) standard ruler, our measurements of the broad-band shape of the monopole and quadrupole correlation functions simultaneously constrain the comoving angular diameter distance (2190 +/- 61 Mpc) to z = 0.57, the Hubble expansion rate at z = 0.57 (92.4 +/- 4.5 km s(-1) Mpc(-1)) and the growth rate of structure at that same redshift (d(sigma 8)/d ln a = 0.43 +/- 0.069). Our analysis provides the best current direct determination of both DA and H in galaxy clustering data using this technique. If we further assume a cold dark matter expansion history, our growth constraint tightens to d(sigma 8)/d ln a = 0.415 +/- 0.034. In combination with the cosmic microwave background, our measurements of D-A,H and d(sigma 8)/d ln a all separately require dark energy at z > 0.57, and when combined imply Omega(A) = 0.74 +/- 0.016, independent of the Universe's evolution at z < 0.57. All of these constraints assume scale-independent linear growth, and assume general relativity to compute both O(10 per cent) non-linear model corrections and our errors. In our companion paper, Samushia et al., we explore further cosmological implications of these observations. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000310064400008 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6151]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA 2.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth P01 3FX, Hants, England 3.Ilia State Univ, Natl Abastumani Astrophys Observ, GE-1060 Tbilisi, Rep of Georgia 4.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 5.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA 6.Yale Univ, Dept Phys, New Haven, CT 06520 USA 7.Max Planck Inst Extraterr Phys, D-85741 Garching, Germany 8.Apache Point Observ, Sunspot, NM 88349 USA 9.Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA 10.Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA |
| 推荐引用方式 GB/T 7714 | Reid, Beth A.,Samushia, Lado,White, Martin,et al. The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,426(4):2719-2737. |
| APA | Reid, Beth A..,Samushia, Lado.,White, Martin.,Percival, Will J..,Manera, Marc.,...&Zhao, Gong-Bo.(2012).The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,426(4),2719-2737. |
| MLA | Reid, Beth A.,et al."The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: measurements of the growth of structure and expansion rate at z=0.57 from anisotropic clustering".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 426.4(2012):2719-2737. |
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来源：国家天文台
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