CONSTRAINTS ON BLACK HOLE MASSES WITH TIMESCALES OF VARIATIONS IN BLAZARS
文献类型：期刊论文
| 作者 | Liu HT(刘洪涛)1,2 ; Bai JM(白金明)1,2
|
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2015-06 |
| 卷号 | 149期号:6 |
| ISSN号 | 0004-6256 |
| 关键词 | black hole physics BL Lacertae objects: general galaxies: active galaxies: jets quasars: general |
| 通讯作者 | Liu, HT (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China. |
| 产权排序 | 第一完成单位 |
| 英文摘要 | In this paper, we investigated the issue of black hole masses and minimum timescales of jet emission for blazars. We proposed a sophisticated model that sets an upper limit to the central black hole masses M. with the minimum timescales Delta t(min)(ob) of variations observed in blazars. The value of Delta t(min)(ob) presents an upper limit to the size of the blob in the jet. The blob is assumed to be generated in the jet-production region in the vicinity of the black hole, and then the expanding blob travels outward along the jet. We applied the model to 32 blazars, 29 of which were detected in gamma-rays by satellites, and these Delta t(min)(ob) are on the order of hours, with large variability amplitudes. In general, the M. estimated with this method are not inconsistent with those masses reported in the literature. This model is natural for connecting M. with Delta t(min)(ob) for blazars, and seems to be applicable in constraining M. in the central engines of blazars. |
| 学科主题 | Astronomy & Astrophysics |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | BL-LACERTAE OBJECTS ; RAY-LOUD BLAZARS ; ACTIVE GALACTIC NUCLEI ; VARIABILITY TIME-SCALES ; GAMMA-RAY ; OBSERVATIONAL EVIDENCE ; INTRADAY VARIABILITY ; SPECTRAL VARIABILITY ; ACCRETION-DISK ; CCD PHOTOMETRY |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/article/10.1088/0004-6256/149/6/191/meta |
| 语种 | 英语 |
| WOS记录号 | WOS:000355250400014 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5467]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） 云南天文台_中国科学院天体结构与演化重点实验室 |
| 作者单位 | 1.Yunnan Observatories, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan 650011, China |
| 推荐引用方式 GB/T 7714 | Liu HT,Bai JM. CONSTRAINTS ON BLACK HOLE MASSES WITH TIMESCALES OF VARIATIONS IN BLAZARS[J]. ASTRONOMICAL JOURNAL,2015,149(6). |
| APA | Liu HT,&Bai JM.(2015).CONSTRAINTS ON BLACK HOLE MASSES WITH TIMESCALES OF VARIATIONS IN BLAZARS.ASTRONOMICAL JOURNAL,149(6). |
| MLA | Liu HT,et al."CONSTRAINTS ON BLACK HOLE MASSES WITH TIMESCALES OF VARIATIONS IN BLAZARS".ASTRONOMICAL JOURNAL 149.6(2015). |
入库方式： OAI收割
来源：云南天文台
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