Institutional Repository of Radio Astronomy Research Laboratory
| A new model for the periodic outbursts of the BL Lac object OJ287 | |
Shi, Weizhao1,2 ; Liu, Xiang1; Song, Huagang1
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| 2007-07-01 | |
| Source Publication | ASTROPHYSICS AND SPACE SCIENCE
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| Volume | 310Issue:1-2Pages:59-63 |
| Contribution Rank | 1 |
| Abstract | Recent observations provide strong evidence for the BL Lac object OJ287 exhibiting a 11.6 +/- 0.5 yr periodicity with a double-peaked maxima in its optical flux variations. Several models have been proposed for the optical behavior. The 2005 November outburst in OJ287 gives us a surprising result since calculation based on the periodicity was predicting such an outburst in late 2006. Here we suggest a new model, it can not only explain the optical quasi-periodic behavior, but also the radio flares behavior which is and simultaneous with the optical flares. We propose that OJ287 is a binary pair of super-massive black holes, both of them creating a jet. The quasi-periodic double peaks would be due to the relativistic beaming effect on the emission coming from the double helix jets. We used "core flares" to explain the large lags between light curves at different frequencies, and the assumption of two jets appear to be merged with each other partly in the radio frequency emitting regions provides a viable interpretation that we can see only a broad maximum which contains two radio flares that we cannot distinguish. |
| Keyword | BLack Hole Physics : Bl Lac Objects : Individual : Oj287 Radiation Mechanisms Non-thermal |
| Subtype | Article |
| DOI | 10.1007/s10509-007-9413-z |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | BLACK-HOLE MODEL ; OJ 287 ; JET |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000247635000009 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/815 |
| Collection | 射电天文研究室_星系宇宙学研究团组 射电天文研究室 科学传播中心_天文科普教育中心 研究生学位论文 |
| Corresponding Author | Shi, Weizhao |
| Affiliation | 1.Natl Astron Observ, Urumqi Observ, Urumqi, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Shi, Weizhao,Liu, Xiang,Song, Huagang. A new model for the periodic outbursts of the BL Lac object OJ287[J]. ASTROPHYSICS AND SPACE SCIENCE,2007,310(1-2):59-63. |
| APA | Shi, Weizhao,Liu, Xiang,&Song, Huagang.(2007).A new model for the periodic outbursts of the BL Lac object OJ287.ASTROPHYSICS AND SPACE SCIENCE,310(1-2),59-63. |
| MLA | Shi, Weizhao,et al."A new model for the periodic outbursts of the BL Lac object OJ287".ASTROPHYSICS AND SPACE SCIENCE 310.1-2(2007):59-63. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| A New model for the （269KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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