Supermassive black holes in BL Lacertae objects: Estimated masses and their relation to nuclear luminosity
文献类型：期刊论文
| 作者 | Xie GZ(谢光中)1,2,3 ; Liang EW(梁恩维)1,2,4; Xie, ZH5; Dai BZ(戴本忠)1,2
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| 刊名 | ASTRONOMICAL JOURNAL
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| 出版日期 | 2002-05 |
| 卷号 | 123期号:5页码:2352-2357 |
| 关键词 | BL Lacertae objects : general black hole physics galaxies : active galaxies : nuclei |
| ISSN号 | 0004-6256 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Xie, GZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | We compile a sample of 13 BL Lac objects for which rapid optical variabilities are reliably established and luminosities of the nuclei and the host galaxies have been well observed by the Hubble Space Telescope (HST). We present a new method for estimating the masses of the supermassive black holes (SMBHs) at the centers of these objects using the rapid optical variability, and find that the masses of the SMBHs range from 10(7.42) to 10(9.19) M(.). This mass range is quite similar to that of dark compact objects in galaxies. To further investigate the reliability of our method, we also compile another sample with nine high-energy gamma-ray emission sources of BL Lac objects and obtain the masses for the SMBHs in these objects using the Dermer & Gehrels method. We find that the masses derived from these two methods are quite similar. These results strongly imply that the estimation of masses of SMBHs by rapid optical variability is reliable. We examine the correlations of the masses with the luminosities of the nuclei and the host galaxies observed by HST, and find that the masses are significantly correlated with the luminosities of the nuclei, but not correlated with the luminosities of host galaxies at all. In addition, we examine the relation between the observed minimal time-scale of variation and the bolometric luminosities of the objects. We find that they obey the Abromowicz & Nobili relation. These results possibly imply that the luminosities of the nuclei are produced by accretion of the central SMBHs. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; RAY-LOUD BLAZARS ; HOST GALAXIES ; RADIO-SOURCES ; VARIABILITY ; QUASARS ; SEARCH ; MODEL |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/1538-3881/123/5/2352/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000175311200014 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/6950]  |
| 专题 | 云南天文台_星系研究组 |
| 作者单位 | 1.Yunnan Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China 3.Yunnan Astrophysics Center, Yunnan Normal University, Kunming 650091, China 4.Physics Department, Guangxi University, Guangxi 530004, China 5.Department of Physics, University of Hong Kong, Hong Kong, China |
| 推荐引用方式 GB/T 7714 | Xie GZ,Liang EW,Xie, ZH,et al. Supermassive black holes in BL Lacertae objects: Estimated masses and their relation to nuclear luminosity[J]. ASTRONOMICAL JOURNAL,2002,123(5):2352-2357. |
| APA | Xie GZ,Liang EW,Xie, ZH,&Dai BZ.(2002).Supermassive black holes in BL Lacertae objects: Estimated masses and their relation to nuclear luminosity.ASTRONOMICAL JOURNAL,123(5),2352-2357. |
| MLA | Xie GZ,et al."Supermassive black holes in BL Lacertae objects: Estimated masses and their relation to nuclear luminosity".ASTRONOMICAL JOURNAL 123.5(2002):2352-2357. |
入库方式： OAI收割
来源：云南天文台
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