SPIN ALIGNMENTS OF SPIRAL GALAXIES WITHIN THE LARGE-SCALE STRUCTURE FROM SDSS DR7
文献类型：期刊论文
| 作者 | Wang, L ; Wang, L
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2015 |
| 卷号 | 798期号:1页码:17 |
| 英文摘要 | Using a sample of spiral galaxies selected from the Sloan Digital Sky Survey Data Release 7 and Galaxy Zoo 2, we investigate the alignment of spin axes of spiral galaxies with their surrounding large-scale structure, which is characterized by the large-scale tidal field reconstructed from the data using galaxy groups above a certain mass threshold. We find that the spin axes only have weak tendencies to be aligned with (or perpendicular to) the intermediate (or minor) axis of the local tidal tensor. The signal is the strongest in a cluster environment where all three eigenvalues of the local tidal tensor are positive. Compared to the alignments between halo spins and the local tidal field obtained in N-body simulations, the above observational results are in best agreement with those for the spins of inner regions of halos, suggesting that the disk material traces the angular momentum of dark matter halos in the inner regions. |
| 学科主题 | 天文和天体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000347245100017 |
| 公开日期 | 2015-12-24 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/14857]  |
| 专题 | 紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组 |
| 推荐引用方式 GB/T 7714 | Wang, L,Wang, L. SPIN ALIGNMENTS OF SPIRAL GALAXIES WITHIN THE LARGE-SCALE STRUCTURE FROM SDSS DR7[J]. ASTROPHYSICAL JOURNAL,2015,798(1):17. |
| APA | Wang, L,&Wang, L.(2015).SPIN ALIGNMENTS OF SPIRAL GALAXIES WITHIN THE LARGE-SCALE STRUCTURE FROM SDSS DR7.ASTROPHYSICAL JOURNAL,798(1),17. |
| MLA | Wang, L,et al."SPIN ALIGNMENTS OF SPIRAL GALAXIES WITHIN THE LARGE-SCALE STRUCTURE FROM SDSS DR7".ASTROPHYSICAL JOURNAL 798.1(2015):17. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。