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The dependence of clustering on galaxy properties
文献类型：期刊论文
| 作者 | Li, C ; Kauffmann, G; Jing, YP; White, SDM; Borner, G; Cheng, FZ
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2006-05-01 |
| 卷号 | 368期号:1页码:21-36 |
| 关键词 | galaxies : clusters : general galaxies : distances and redshifts cosmology : theory dark matter large-scale structure of Universe |
| 英文摘要 | We use a sample of similar to 200 000 galaxies drawn from the Sloan Digital Sky Survey (SDSS) with 0.01 < z < 0.3 and - 23 < M-0.1 F < - 16 to study how clustering depends on properties such as stellar mass (M-*), colour (g - r), 4000-angstrom break strength (D-4000), concentration index (C), and stellar surface mass density (mu(*)). Our measurements of w(p)(r(p)) as a function of the r-band luminosity are in excellent agreement with the previous two-degree Field Galaxy Redshift Survey and SDSS analyses. We compute wp(r(p)) as a function of stellar mass and we find that more-massive galaxies cluster more strongly than less-massive galaxies, with the difference increasing above the characteristic stellar mass M* of the Schechter mass function. We then divide our sample according to colour, 4000- angstrom break strength, concentration and surface density. As expected, galaxies with redder colours, larger 4000- angstrom break strengths, higher concentrations and larger surface mass densities cluster more strongly. The clustering differences are largest on small scales and for low-mass galaxies. At fixed stellar mass, the dependences of clustering on colour and 4000- angstrom break strength are similar. Different results are obtained when galaxies are split by concentration or surface density. The dependence of wp(r(p)) on g - r and D4000 extends out to physical scales that are significantly larger than those of individual dark matter haloes (> 5 h(-1) Mpc). This large-scale clustering dependence is not seen for the parameters C or mu*. On small scales (< 1 h(-1) Mpc), the amplitude of the correlation function is constant for 'young' galaxies with 1.1 < D-4000 < 1.5 and a steeply rising function of age for 'older' galaxies with D-4000 > 1.5. In contrast, the dependence of the amplitude of wp(r(p)) on concentration on scales less than 1 h(-1) Mpc is strongest for disc-dominated galaxies with C < 2.6. This demonstrates that different processes are required to explain environmental trends in the structure and in the star formation history of galaxies. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | 星系和宇宙学研究中心 |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; PAIRWISE VELOCITY DISPERSION ; REDSHIFT SURVEY ; LUMINOSITY FUNCTION ; POWER SPECTRUM ; STAR-FORMATION ; STELLAR MASS ; DATA RELEASE ; COLOR ; MODELS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236797600019 |
| 公开日期 | 2010-11-08 |
| 源URL | [http://119.78.226.72//handle/331011/11841]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Shanghai Astron Observ, MPI Astrophys, Partner Grp, Shanghai 200030, Peoples R China 2.Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China 3.Max Planck Inst Astrophys, D-85748 Garching, Germany |
| 推荐引用方式 GB/T 7714 | Li, C,Kauffmann, G,Jing, YP,et al. The dependence of clustering on galaxy properties[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,368(1):21-36. |
| APA | Li, C,Kauffmann, G,Jing, YP,White, SDM,Borner, G,&Cheng, FZ.(2006).The dependence of clustering on galaxy properties.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,368(1),21-36. |
| MLA | Li, C,et al."The dependence of clustering on galaxy properties".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 368.1(2006):21-36. |
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来源：上海天文台
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