POWERFUL RADIO EMISSION FROM LOW-MASS SUPERMASSIVE BLACK HOLES FAVORS DISK-LIKE BULGES
文献类型：期刊论文
| 作者 | Wang, J.1,2; Xu, Y.1,2; Xu, D. W.1,2; Wei, J. Y.1,2 |
| 刊名 | ASTROPHYSICAL JOURNAL LETTERS
 |
| 出版日期 | 2016-12-10 |
| 卷号 | 833期号:1 |
| 关键词 | galaxies: bulges galaxies: nuclei galaxies: Seyfert |
| 英文摘要 | The origin of spin of low-mass supermassive black holes (SMBHs) is still a puzzle at present. We report here a study on the host galaxies of a sample of radio-selected nearby (z < 0.05) Seyfert 2 galaxies with a BH mass of 106-7. M-circle dot. By modeling the SDSS r-band images of these galaxies through a two-dimensional bulge+disk decomposition, we identify a new dependence of SMBH's radio power on host bulge surface brightness profiles, in which more powerful radio emission comes from an SMBH associated with a more disk-like bulge. This result means low-mass and high-mass SMBHs are spun up by two entirely different modes that correspond to two different evolutionary paths. A low-mass SMBH is spun up by a gas accretion with significant disk-like rotational dynamics of the host galaxy in the secular evolution, while a high-mass one by a BH-BH merger in the merger evolution. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; LINE SEYFERT 1 ; DIGITAL SKY SURVEY ; HOST GALAXIES ; STAR-FORMATION ; ELECTROMAGNETIC EXTRACTION ; ACCRETION DISKS ; PSEUDO-BULGES ; O-II ; EVOLUTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000401603900002 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8775]  |
| 专题 | 国家天文台_空间科学研究部 |
| 作者单位 | 1.Chinese Acad Sci, CAS Key Lab Space Astron & Technol, Natl Astron Observ, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, J.,Xu, Y.,Xu, D. W.,et al. POWERFUL RADIO EMISSION FROM LOW-MASS SUPERMASSIVE BLACK HOLES FAVORS DISK-LIKE BULGES[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,833(1). |
| APA | Wang, J.,Xu, Y.,Xu, D. W.,&Wei, J. Y..(2016).POWERFUL RADIO EMISSION FROM LOW-MASS SUPERMASSIVE BLACK HOLES FAVORS DISK-LIKE BULGES.ASTROPHYSICAL JOURNAL LETTERS,833(1). |
| MLA | Wang, J.,et al."POWERFUL RADIO EMISSION FROM LOW-MASS SUPERMASSIVE BLACK HOLES FAVORS DISK-LIKE BULGES".ASTROPHYSICAL JOURNAL LETTERS 833.1(2016). |
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来源：国家天文台
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