Probing the Missing Baryons via kSZ Stacking
文献类型：期刊论文
| 作者 | Miao Han2; Lin WeiPeng2; Zhang PengJie2 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016 |
| 卷号 | 16期号:4 |
| 关键词 | ZELDOVICH RADIATION CODE cosmology: theory large scale structure kinetic Sunyaev-Zel'dovich effect missing baryons |
| ISSN号 | 1674-4527 |
| 英文摘要 | Kinetic Sunyaev-Zel'dovich (kSZ) stacking has great potential to become a powerful probe of missing baryons, due to advances in CMB experiments and galaxy surveys. In this paper, we study kSZ stacking in hydrodynamic simulations with different gastrophysics. We quantify the kSZ stacking signal as a function of halo mass, redshift and projection depth. We compare between different simulations to estimate the impact of gastrophysics such as cooling and supernova feedback. Furthermore, we measure the contribution from warm-hot intergalactic medium (WHIM), which is believed to be the reservoir for most, if not all, missing baryons. We find that the WHIM contribution is significant, at the level of similar to 10%-70%, depending on the angular separation from the stacked halos and other factors. However, contribution from the intracluster medium along the line of sight is in general non-negligible. This complexity requires more detailed and comprehensive analysis on probing the missing baryons with kSZ stacking. |
| 资助项目 | [National Natural Science Foundation of China] ; [National Key Basic Research Program of China] ; ["Strategic Priority Research Program the Emergence of Cosmological Structures" of the Chinese Academy of Sciences] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/57539]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.上海交通大学 2.中国科学院国家天文台 3.中国科学院广州地球化学研究所 |
| 推荐引用方式 GB/T 7714 | Miao Han,Lin WeiPeng,Zhang PengJie. Probing the Missing Baryons via kSZ Stacking[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(4). |
| APA | Miao Han,Lin WeiPeng,&Zhang PengJie.(2016).Probing the Missing Baryons via kSZ Stacking.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(4). |
| MLA | Miao Han,et al."Probing the Missing Baryons via kSZ Stacking".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.4(2016). |
入库方式： OAI收割
来源：国家天文台
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