SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies
文献类型：期刊论文
| 作者 | Greene,J. E.1; Leauthaud,A.2; Emsellem,E.3; Ge,J.4; Aragón-Salamanca,A.5; Greco,J.1; Lin,Y.-T.6; Mao,S.4,7,8; Masters,K.9; Merrifield,M.5 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2018-01-03 |
| 卷号 | 852期号:1 |
| ISSN号 | 0004-637X |
| 关键词 | galaxies: elliptical and lenticular, cD galaxies: halos galaxies: kinematics and dynamics |
| DOI | 10.3847/1538-4357/aa9bde |
| 英文摘要 | Abstract We study 379 central and 159 satellite early-type galaxies with two-dimensional kinematics from the integral-field survey Mapping Nearby Galaxies at APO (MaNGA) to determine how their angular momentum content depends on stellar and halo mass. Using the Yang et al. group catalog, we identify central and satellite galaxies in groups with halo masses in the range . As in previous work, we see a sharp dependence on stellar mass, in the sense that ～70% of galaxies with stellar mass tend to have very little rotation, while nearly all galaxies at lower mass show some net rotation. The ～30% of high-mass galaxies that have significant rotation do not stand out in other galaxy properties, except for a higher incidence of ionized gas emission. Our data are consistent with recent simulation results suggesting that major merging and gas accretion have more impact on the rotational support of lower-mass galaxies. When carefully matching the stellar mass distributions, we find no residual differences in angular momentum content between satellite and central galaxies at the 20% level. Similarly, at fixed mass, galaxies have consistent rotation properties across a wide range of halo mass. However, we find that errors in classification of central and satellite galaxies with group finders systematically lower differences between satellite and central galaxies at a level that is comparable to current measurement uncertainties. To improve constraints, the impact of group-finding methods will have to be forward-modeled via mock catalogs. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-852-1-AA9BDE |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/35765]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Department of Astrophysics, Princeton University, Princeton, NJ 08540, USA 2.Department of Astronomy and Astrophysics, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USA 3.European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85741 Garching, Germany 4.National Astronomical Observatories, Chinese Academy of Sciences, 20A Datun Road, Chaoyang District, Beijing 100012, China 5.School of Physics and Astronomy, The University of Nottingham, University Park, Nottingham, NG7 2RD, UK 6.Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 10617, Taiwan 7.Physics Department and Tsinghua Centre for Astrophysics, Tsinghua University, Beijing 100084, China 8.Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, UK 9.Institute of Cosmology and Gravitation, University of Portsmouth, Dennis Sciama Building, Burnaby Road, Portsmouth PO1 3FX, UK 10.Kavli Institute for the Physics and Mathematics of the Universe (WPI), Tokyo Institutes for Advanced Study, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba, 277-8583, Japan |
| 推荐引用方式 GB/T 7714 | Greene,J. E.,Leauthaud,A.,Emsellem,E.,et al. SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies[J]. The Astrophysical Journal,2018,852(1). |
| APA | Greene,J. E..,Leauthaud,A..,Emsellem,E..,Ge,J..,Aragón-Salamanca,A..,...&Bosch,F. van den.(2018).SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies.The Astrophysical Journal,852(1). |
| MLA | Greene,J. E.,et al."SDSS-IV MaNGA: Uncovering the Angular Momentum Content of Central and Satellite Early-type Galaxies".The Astrophysical Journal 852.1(2018). |
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