| SPINS OF SUPERMASSIVE BLACK HOLES IN M87. II. FULLY GENERAL RELATIVISTIC CALCULATIONS | |
Li, YR1; Yuan, YF2; Wang, JM1,3; Wang JC(王建成)4 ; Zhang, S1; Li, YR (reprint author), CAS, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2009-07-01 | |
| 卷号 | 699期号:1页码:513-524 |
| DOI | 10.1088/0004-637X/699/1/513 |
| 产权排序 | 第4完成单位 |
| 收录类别 | SCI |
| 关键词 | Black Hole Physics Galaxies: Individual (M87) |
| 摘要 | The fast variability of energetic TeV photons from the center of M87 has been detected, offering a new clue to estimate spins of supermassive black holes (SMBHs). We extend the study of Wang et al. by including all of the general relativistic effects. We numerically solve the full set of relativistic hydrodynamical equations of the radiatively inefficient accretion flows (RIAFs) and then obtain the radiation fields around the black hole. The optical depth of the radiation fields to TeV photons due to pair productions is calculated in the Kerr metric. We find that the optical depth strongly depends on (1) accretion rates as tau(TeV) proportional to (M) over dot(2.5-5.0), (2) black hole spins, and (3) location of the TeV source. Jointly considering the optical depth and the spectral energy distribution radiated from the RIAFs, the strong degeneration of the spin with the other free parameters in the RIAF model can be largely relaxed. We apply the present model to M87, wherein the RIAFs are expected to be at work, and find that the minimum specific angular momentum of the hole is a similar to 0.8. The present methodology is applicable to M87-like sources with future detection of TeV emissions to constrain the spins of SMBHs. |
| 项目资助者 | NSFC ; CAS [NSFC-10325313, 10821061, 10521001, 10673010, 10573016, KJCX2-YW-T03] ; 973 project [2009CB824800] |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000267056300041 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ADVECTION-DOMINATED ACCRETION ; ACTIVE GALACTIC NUCLEI ; GAMMA-RAYS ; VLBI OBSERVATIONS ; SCALE STRUCTURE ; A-ASTERISK ; JET ; EMISSION ; DISK ; VARIABILITY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/4980 |
| 专题 | 高能天体物理研究组 |
| 通讯作者 | Li, YR (reprint author), CAS, Inst High Energy Phys, Key Lab Particle Astrophys, 19B Yuquan Rd, Beijing 100049, Peoples R China. |
| 作者单位 | 1.Key Laboratory for Particle Astrophysics, Institute of High Energy Physics, CAS, 19B Yuquan Road, Beijing 100049, China 2.Key Laboratory for Research in Galaxies and Cosmology, University of Sciences and Technology of China, CAS, Hefei, Anhui 230026, China 3.Theoretical Physics Center for Science Facilities (TPCSF), CAS 4.Yunnan Observatory, CAS, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Li, YR,Yuan, YF,Wang, JM,et al. SPINS OF SUPERMASSIVE BLACK HOLES IN M87. II. FULLY GENERAL RELATIVISTIC CALCULATIONS[J]. ASTROPHYSICAL JOURNAL,2009,699(1):513-524. |
| APA | Li, YR,Yuan, YF,Wang, JM,Wang JC,Zhang, S,&Li, YR .(2009).SPINS OF SUPERMASSIVE BLACK HOLES IN M87. II. FULLY GENERAL RELATIVISTIC CALCULATIONS.ASTROPHYSICAL JOURNAL,699(1),513-524. |
| MLA | Li, YR,et al."SPINS OF SUPERMASSIVE BLACK HOLES IN M87. II. FULLY GENERAL RELATIVISTIC CALCULATIONS".ASTROPHYSICAL JOURNAL 699.1(2009):513-524. |
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| SPINS OF SUPERMASSIV（436KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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