MACER Improved: AGN Feedback Computed in Rotating Early-type Galaxies at High Resolution
文献类型：期刊论文
| 作者 | Gan, Zhaoming1; Ciotti, Luca2; Ostriker, Jeremiah P.3; Yuan, Feng1 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019-02-20 |
| 卷号 | 872期号:2页码:21 |
| ISSN号 | 0004-637X |
| 关键词 | black hole physics galaxies: elliptical and lenticular, cD galaxies: evolution methods: numerical |
| DOI | 10.3847/1538-4357/ab0206 |
| 英文摘要 | Based on our previous modeling of active galactic nucleus (AGN) feedback in isolated elliptical galaxies using the MACER (Massive AGN Controlled Ellipticals Resolved) code, we extend and improve the model to include rotation, to facilitate angular momentum transfer via the Toomre instability in gaseous disks, to limit the star formation to regions of high density and low temperature, and to improve the treatment of hot-mode (low accretion rate) AGN feedback. The model galaxy now has an extended dark matter profile that matches with standard observations, but it has a resolution of parsecs in the inner region and resolves the Bondi radius. We find that the results agree reasonably well with a panoply of observations: (1) Both AGN activity and star formation are primarily in central cold gaseous disks, are bursty, and are mainly driven by the Toomre instability. (2) The AGN duty cycle agrees well with the Soltan argument, i.e., the AGN spends most of its lifetime when it is in low luminosity (half of the time with L/L-Edd < 7 x 10(-5)), while emitting most of its energy when it is in high luminosity (half of radiant energy emitted with L/L-Edd > 0.06). (3) The total star formation is roughly a few percent of the initial stellar mass, occurring in the bursts that would be associated with the observed E+A phenomenon. Most of the star formation occurs in a circumnuclear disk of size <= 1 kpc, which is in agreement with recent observations. (4) The interstellar medium X-ray luminosity varies within a reasonable range (median L-X,L-ISM = 9.1 x 10(39) erg s(-1)), in agreement with observations. |
| 资助项目 | National Key Research and Development Program of China[2016YFA0400704] ; Natural Science Foundation of China[11573051] ; Natural Science Foundation of China[11633006] ; Natural Science Foundation of China[11661161012] ; Key Research Program of Frontier Sciences of CAS[QYZDJSSW-SYS008] ; Natural Science Foundation of Shanghai[18ZR1447200] ; Astronomical Big Data Joint Research Center ; Alibaba Cloud ; NIH Research Facility Improvement Grant[1G20RR030893-01] ; New York State Empire State Development, Division of Science Technology and Innovation (NYSTAR) Contract[C090171] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000459323800020 |
| 源URL | [http://119.78.226.72/handle/331011/31927]  |
| 专题 | 中国科学院上海天文台 |
| 通讯作者 | Gan, Zhaoming |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China 2.Univ Bologna, Dept Phys & Astron, Via Piero Gobetti 93-2, I-40129 Bologna, Italy 3.Columbia Univ, Dept Astron, 550 W 120th St, New York, NY 10027 USA |
| 推荐引用方式 GB/T 7714 | Gan, Zhaoming,Ciotti, Luca,Ostriker, Jeremiah P.,et al. MACER Improved: AGN Feedback Computed in Rotating Early-type Galaxies at High Resolution[J]. ASTROPHYSICAL JOURNAL,2019,872(2):21. |
| APA | Gan, Zhaoming,Ciotti, Luca,Ostriker, Jeremiah P.,&Yuan, Feng.(2019).MACER Improved: AGN Feedback Computed in Rotating Early-type Galaxies at High Resolution.ASTROPHYSICAL JOURNAL,872(2),21. |
| MLA | Gan, Zhaoming,et al."MACER Improved: AGN Feedback Computed in Rotating Early-type Galaxies at High Resolution".ASTROPHYSICAL JOURNAL 872.2(2019):21. |
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来源：上海天文台
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