Revealing the Cosmic Web-dependent Halo Bias
文献类型：期刊论文
| 作者 | Yang, Xiaohu1,2,6; Zhang, Youcai5; Lu, Tianhuan4; Wang, Huiyuan3; Shi, Feng5; Tweed, Dylan2; Li, Shijie2; Luo, Wentao2; Lu, Yi5; Yang, Lei2 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2017-10-10 |
| 卷号 | 848期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | Dark Matter Galaxies: Halos Large-scale Structure Of Universe |
| DOI | 10.3847/1538-4357/aa8c7a |
| 英文摘要 | Halo bias is the one of the key ingredients of the halo models. It was shown at a given redshift to be only dependent, to the first order, on the halo mass. In this study, four types of cosmic web environments-clusters, filaments, sheets, and voids-are defined within a state-of-the-art high-resolution N-body simulation. Within these environments, we use both halo-dark matter cross correlation and halo-halo autocorrelation functions to probe the clustering properties of halos. The nature of the halo bias differs strongly between the four different cosmic web environments described here. With respect to the overall population, halos in clusters have significantly lower biases in the 10(11.0) similar to 10(13.5)h(-1) M-circle dot mass range. In other environments, however, halos show extremely enhanced biases up to a factor 10 in voids for halos of mass similar to 10(12.0) h(-1) M-circle dot. Such a strong cosmic web environment dependence in the halo bias may play an important role in future cosmological and galaxy formation studies. Within this cosmic web framework, the age dependency of halo bias is found to be only significant in clusters and filaments for relatively small halos less than or similar to 10(12.5) h(-1)M(circle dot) |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000413039500005 |
| 源URL | [http://119.78.226.72/handle/331011/32579]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Yang, Xiaohu |
| 作者单位 | 1.Shanghai Jiao Tong Univ, IFSA Collaborat Innovat Ctr, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, Dept Astron, Shanghai 200240, Peoples R China 3.Univ Sci & Technol China, Dept Astron, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China 4.Shanghai Jiao Tong Univ, Zhiyuan Coll, Shanghai 200240, Peoples R China 5.Shanghai Astron Observ, Nandan Rd 80, Shanghai 200030, Peoples R China 6.Tsung Dao Lee Inst, Shanghai 200240, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Xiaohu,Zhang, Youcai,Lu, Tianhuan,et al. Revealing the Cosmic Web-dependent Halo Bias[J]. ASTROPHYSICAL JOURNAL,2017,848(1). |
| APA | Yang, Xiaohu.,Zhang, Youcai.,Lu, Tianhuan.,Wang, Huiyuan.,Shi, Feng.,...&Yang, Lei.(2017).Revealing the Cosmic Web-dependent Halo Bias.ASTROPHYSICAL JOURNAL,848(1). |
| MLA | Yang, Xiaohu,et al."Revealing the Cosmic Web-dependent Halo Bias".ASTROPHYSICAL JOURNAL 848.1(2017). |
入库方式： OAI收割
来源：上海天文台
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