Stellar and AGN Feedback in Isolated Early-type Galaxies: The Role in Regulating Star Formation and ISM Properties
文献类型：期刊论文
| 作者 | Li, Ya-Ping1; Yuan, Feng1,2; Mo, Houjun4,5,6; Yoon, Doosoo1; Gan, Zhaoming1; Ho, Luis C.7,8; Wang, Bo10; Ostriker, Jeremiah P.9; Ciotti, Luca3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2018-10-10 |
| 卷号 | 866期号:1 |
| 关键词 | Black Hole Physics Galaxies: Elliptical And Lenticular, Cd Galaxies: Evolution Galaxies: Stellar Content Methods: Numerical |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/aade8b |
| 英文摘要 | How galaxies maintain the inefficiency of star formation with physically self-consistent models is a central problem in understanding galaxy evolution. Although numerous theoretical models have been proposed in recent decades, the debate continues. By means of high-resolution two-dimensional hydrodynamical simulations, we study the three feedback effects (the stellar wind heating, supernova (SN) feedback, and active galactic nucleus (AGN) feedback) in suppressing star formation activities on the evolution of early-type galaxies with different stellar masses. The AGN feedback models are updated from work by Yuan et al. The gas sources arise exclusively from the mass losses of dying low-mass stars for most of our models. We find that SN feedback can keep star formation at a significantly low level for low-mass elliptical galaxies for a cosmological evolution time. For high-mass galaxies, AGN feedback can efficiently offset radiative cooling and thus regulate star formation activity. Such a suppression of star formation is extremely efficient in the inner regions of galaxies. Asymptotic giant branch heating cannot account for this suppression for low-or high-mass galaxies. The X-ray temperature T-X and luminosity L-X of hot plasma can be in agreement with the observed data with the inclusion of effective feedback processes. These results thus suggest that we can use T-X and L-X to probe the role of different feedback processes. The inclusion of additional gas sources can cause the mass scale between SN and AGN feedback to dominate in suppressing star formation decrease to an observationally inferred value of a few 10(10) M-circle dot. |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000447585000006 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://119.78.226.72/handle/331011/32229]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Li, Ya-Ping |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Univ Bologna, Dept Phys & Astron, Via Piero Gobetti 93-2, I-40129 Bologna, Italy 4.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 5.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 6.Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA 7.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 8.Peking Univ, Sch Phys, Dept Astron, Beijing 100871, Peoples R China 9.Columbia Univ, Dept Astron, 550 W,120th St, New York, NY 10027 USA 10.Chinese Acad Sci, Yunnan Observ, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ya-Ping,Yuan, Feng,Mo, Houjun,et al. Stellar and AGN Feedback in Isolated Early-type Galaxies: The Role in Regulating Star Formation and ISM Properties[J]. ASTROPHYSICAL JOURNAL,2018,866(1). |
| APA | Li, Ya-Ping.,Yuan, Feng.,Mo, Houjun.,Yoon, Doosoo.,Gan, Zhaoming.,...&Ciotti, Luca.(2018).Stellar and AGN Feedback in Isolated Early-type Galaxies: The Role in Regulating Star Formation and ISM Properties.ASTROPHYSICAL JOURNAL,866(1). |
| MLA | Li, Ya-Ping,et al."Stellar and AGN Feedback in Isolated Early-type Galaxies: The Role in Regulating Star Formation and ISM Properties".ASTROPHYSICAL JOURNAL 866.1(2018). |
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来源：上海天文台
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