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The alignment between the distribution of satellites and the orientation of their central galaxy
文献类型：期刊论文
| 作者 | Yang, XH; van den Bosch, FC; Mo, HJ; Mao, SD; Kang, X; Weinmann, SM; Guo, YC; Jing, YP |
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 369期号:3页码:1293-1302 |
| 关键词 | methods : statistical galaxies : haloes galaxies : structure dark matter large-scale structure of Universe |
| 英文摘要 | We use galaxy groups selected from the Sloan Digital Sky Survey to examine the alignment between the orientation of the central galaxy (defined as the brightest group member) and the distribution of satellite galaxies. By construction, we therefore only address the alignment on scales smaller than the halo virial radius. We find a highly significant alignment of satellites with the major axis of their central galaxy. This is in qualitative agreement with the recent study of Brainerd, but inconsistent with several previous studies who detected a preferential minor-axis alignment. The alignment strength in our sample is strongest between red central galaxies and red satellites. On the contrary, the satellite distribution in systems with a blue central galaxy is consistent with isotropic. We also find that the alignment strength is stronger in more massive haloes and at smaller projected radii from the central galaxy. In addition, there is a weak indication that fainter (relative to the central galaxy) satellites are more strongly aligned. We present a detailed comparison with previous studies, and discuss the implications of our findings for galaxy formation. |
| 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] | DARK-MATTER HALOES ; DIGITAL SKY SURVEY ; ANGULAR-MOMENTUM DISTRIBUTION ; LEO-SCULPTOR STREAM ; RADIAL-DISTRIBUTION ; DENSITY PROFILES ; MILKY-WAY ; ANISOTROPIC DISTRIBUTION ; SUBHALO POPULATIONS ; SPIRAL GALAXIES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000238353800025 |
| 公开日期 | 2010-11-08 |
| 源URL | [http://119.78.226.72//handle/331011/11921]  |
| 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, Shanghai 200030, Peoples R China 2.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 3.Max Planck Inst Astron, D-69117 Heidelberg, Germany 4.Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England 5.Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England 6.Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland |
| 推荐引用方式 GB/T 7714 | Yang, XH,van den Bosch, FC,Mo, HJ,et al. The alignment between the distribution of satellites and the orientation of their central galaxy[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,369(3):1293-1302. |
| APA | Yang, XH.,van den Bosch, FC.,Mo, HJ.,Mao, SD.,Kang, X.,...&Jing, YP.(2006).The alignment between the distribution of satellites and the orientation of their central galaxy.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,369(3),1293-1302. |
| MLA | Yang, XH,et al."The alignment between the distribution of satellites and the orientation of their central galaxy".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 369.3(2006):1293-1302. |
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