Three different types of galaxy alignment within dark matter halos
文献类型：期刊论文
| 作者 | Faltenbacher, A.; Li, Cheng; Mao, Shude; van den Bosch, Frank C.; Yang, Xiaohu; Jing, Y. P.; Pasquali, Anna; Mo, H. J. |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2007-06-20 |
| 卷号 | 662期号:2页码:L71-L74 |
| 关键词 | galaxies : clusters : general galaxies : kinematics and dynamics surveys |
| 英文摘要 | Using a large galaxy group catalog based on the Sloan Digital Sky Survey Data Release 4, we measure three different types of intrinsic galaxy alignment within groups: halo alignment between the orientation of the brightest group galaxies ( BGG) and the distribution of its satellite galaxies, radial alignment between the orientation of a satellite galaxy and the direction toward its BGG, and direct alignment between the orientation of the BGG and that of its satellites. In agreement with previous studies, we find that satellite galaxies are preferentially located along the major axis. In addition, on scales r < 0.7R(vir) we find that red satellites are preferentially aligned radially with the direction to the BGG. The orientations of blue satellites, however, are perfectly consistent with being isotropic. Finally, on scales r < 0.1R(vir), we find a weak but significant indication for direct alignment between satellites and BGGs. We briefly discuss the implications for weak-lensing measurements. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; WEAK-LENSING SURVEYS ; LARGE-SCALE STRUCTURE ; TIDAL-TORQUE THEORY ; SATELLITE GALAXIES ; INTRINSIC CORRELATION ; COMA CLUSTER ; ORIENTATION ; MORPHOLOGY ; SHAPES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000247248800006 |
| 源URL | [http://119.78.226.72/handle/331011/19458]  |
| 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 Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England 3.Max Planck Inst Astron, D-69117 Heidelberg, Germany 4.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA |
| 推荐引用方式 GB/T 7714 | Faltenbacher, A.,Li, Cheng,Mao, Shude,et al. Three different types of galaxy alignment within dark matter halos[J]. ASTROPHYSICAL JOURNAL,2007,662(2):L71-L74. |
| APA | Faltenbacher, A..,Li, Cheng.,Mao, Shude.,van den Bosch, Frank C..,Yang, Xiaohu.,...&Mo, H. J..(2007).Three different types of galaxy alignment within dark matter halos.ASTROPHYSICAL JOURNAL,662(2),L71-L74. |
| MLA | Faltenbacher, A.,et al."Three different types of galaxy alignment within dark matter halos".ASTROPHYSICAL JOURNAL 662.2(2007):L71-L74. |
入库方式： OAI收割
来源：上海天文台
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