Autocorrelations of stellar light and mass at z similar to 0 and similar to 1: from SDSS to DEEP2
文献类型：期刊论文
| 作者 | Li, Cheng1,2; White, Simon D. M.2; Chen, Yanmei3,4; Coil, Alison L.5; Davis, Marc6; De Lucia, Gabriella7; Guo, Qi8 ; Jing, Y. P.1; Kauffmann, Guinevere2; Willmer, Christopher N. A.9
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2012 |
| 卷号 | 419期号:2页码:1557-1565 |
| 关键词 | galaxies: formation galaxies: high-redshift galaxies: statistics cosmological parameters large-scale structure of Universe |
| 英文摘要 | We present measurements of projected autocorrelation functions wp(rp) for the stellar mass of galaxies and for their light in the U, B and V bands, using data from the third data release of the DEEP2 Galaxy Redshift Survey and the final data release of the Sloan Digital Sky Survey (SDSS). We investigate the clustering bias of stellar mass and light by comparing these to projected autocorrelations of dark matter estimated from the Millennium Simulations (MS) at z= 1 and 0.07, the median redshifts of our galaxy samples. All of the autocorrelation and bias functions show systematic trends with spatial scale and waveband which are impressively similar at the two redshifts. This shows that the well-established environmental dependence of stellar populations in the local Universe is already in place at z= 1. The recent MS-based galaxy formation simulation of Guo et al. reproduces the scale-dependent clustering of luminosity to an accuracy better than 30 per cent in all bands and at both redshifts, but substantially overpredicts mass autocorrelations at separations below about 2 Mpc. Further comparison of the shapes of our stellar mass bias functions with those predicted by the model suggests that both the SDSS and DEEP2 data prefer a fluctuation amplitude of s8 similar to 0.8 rather than the s8= 0.9 assumed by the MS. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000298482300055 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6081]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Partner Grp MPI Astrophys, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 2.Max Planck Inst Astrophys, D-85741 Garching, Germany 3.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China 4.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China 5.Univ Calif San Diego, Dept Phys, Ctr Astrophys & Space Sci, San Diego, CA 92093 USA 6.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA 7.INAF Astron Observ Trieste, I-34143 Trieste, Italy 8.Univ Durham, Dept Phys, Inst Computat Cosmol, Durham DH1 3LE, England 9.Univ Arizona, Steward Observ, Tucson, AZ 85721 USA 10.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Cheng,White, Simon D. M.,Chen, Yanmei,et al. Autocorrelations of stellar light and mass at z similar to 0 and similar to 1: from SDSS to DEEP2[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2012,419(2):1557-1565. |
| APA | Li, Cheng.,White, Simon D. M..,Chen, Yanmei.,Coil, Alison L..,Davis, Marc.,...&Zhang, Wei.(2012).Autocorrelations of stellar light and mass at z similar to 0 and similar to 1: from SDSS to DEEP2.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,419(2),1557-1565. |
| MLA | Li, Cheng,et al."Autocorrelations of stellar light and mass at z similar to 0 and similar to 1: from SDSS to DEEP2".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 419.2(2012):1557-1565. |
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来源：国家天文台
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