TIDALLY INDUCED OUTBURSTS IN OJ 287 DURING 2005-2008
文献类型：期刊论文
| 作者 | Valtonen, M. J.1; Nilsson, K.1; Villforth, C.1; Lehto, H. J.1; Takalo, L. O.1; Lindfors, E.1; Sillanpaa, A.1; Hentunen, V-P.1; Mikkola, S.1; Zola, S.2,3 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2009-06-10 |
| 卷号 | 698期号:1页码:781-785 |
| 关键词 | accretion, accretion disks black hole physics BL Lacertae objects: individual (OJ 287) quasars: individual (OJ 287) |
| 英文摘要 | The blazar OJ 287 has produced two major optical outburst events during the years 2005-2008. These are the latest in a series of outbursts that have occurred repeatedly at 12 year intervals since early 1900s. It has been possible to explain the historical light curve fairly well by using a binary black hole model where the secondary black hole impacts the accretion disk of the primary twice during the 12 year orbital cycle. We will ask here how well does the latest light-curve fit with this model. We use a 10 million particle disk to model the accretion disk of the primary black hole. The rate of transfer of particles through the 10 Schwarzschild radius cylinder around the primary is followed. The secondary induces an inward flow through this surface. The inward flow rate is compared with the historical light curve as well as with the most recent observations reported in this paper. The observations have been carried out by using a number of small and medium size telescopes in different locations in order to ensure a dense light-curve coverage. The "inflow light curve" and the optical light curve of OJ 287 have a close resemblance to each other. It suggests that the tidally induced accretion flow is responsible for the main features of the optical light curve, with the exception of the quasi-periodic double peaks. It implies a close connection between the accretion disk and the jet where the optical synchrotron emission is presumably generated. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000266373700065 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7543]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Univ Turku, Dept Phys & Astron, Tuorla Observ, Piikkio 21500, Finland 2.Pedag Univ, Mt Suhora Observ, PL-30084 Krakow, Poland 3.Jagiellonian Univ, Astron Observ, PL-30224 Krakow, Poland 4.Landessternwarte Heidelberg, D-69117 Heidelberg, Germany 5.European Space Astron Ctr, Herschel Sci Ctr, Villafranca Castillo Satellite Tracking Stn, Madrid 50727, Spain 6.Nord Opt Telescope, E-38700 Sc De La Palma, Spain 7.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 8.Osaka Kyoiku Univ, Astron Inst, Osaka 5828582, Japan 9.Shoumen Univ, Dept Phys, Shumen 9700, Bulgaria 10.Warkauden Kassiopeia Ry, Kangaslampi 79480, Finland |
| 推荐引用方式 GB/T 7714 | Valtonen, M. J.,Nilsson, K.,Villforth, C.,et al. TIDALLY INDUCED OUTBURSTS IN OJ 287 DURING 2005-2008[J]. ASTROPHYSICAL JOURNAL,2009,698(1):781-785. |
| APA | Valtonen, M. J..,Nilsson, K..,Villforth, C..,Lehto, H. J..,Takalo, L. O..,...&Ohlert, J..(2009).TIDALLY INDUCED OUTBURSTS IN OJ 287 DURING 2005-2008.ASTROPHYSICAL JOURNAL,698(1),781-785. |
| MLA | Valtonen, M. J.,et al."TIDALLY INDUCED OUTBURSTS IN OJ 287 DURING 2005-2008".ASTROPHYSICAL JOURNAL 698.1(2009):781-785. |
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来源：国家天文台
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