Modeling the spectral energy distribution of 3C 454.3 in a "flat" broad-line region scenario
文献类型：期刊论文
| 作者 | Lei MC(雷买昌) ; Wang JC(王建成)
|
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2014-10 |
| 卷号 | 66期号:5 |
| 关键词 | radiation mechanisms: non-thermal galaxies: active quasars: emission lines |
| ISSN号 | 0004-6264 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Lei, MC (reprint author), Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | The broad-line region (BLR) of flat-spectrum radio quasars (FSRQs) could have a "flat" geometrical structure to allow GeV gamma-ray photons to escape, to produce the observed gamma-ray flares with short timescales. In this paper, we collect the quasisimultaneous spectral energy distributions (SEDs) of the FSRQ 3C 454.3 obtained by the multi-wavelength campaigns spanning from 2007 July to 2011 January, and use a model with a "flat" structure BLR, an accretion disc and a dust torus to explain the SEDs of gamma-ray outbursts. We obtain the following results: (i) the jet is almost in equipartition between magnetic and particle energy densities during the outbursts; (ii) when the emitting region is located inside the cavity of the BLR, the covering factor f(BLR) of the BLR is very small-as the emitting region goes into the BLR structure, fBLR increases; (iii) the aperture angle a describing the BLR structure is about 45 degrees; (iv) the central black hole mass is about 5 x 10(8) M-circle dot rather than 4.4 x 109 M-circle dot . |
| 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] | SPACE-TELESCOPE OBSERVATIONS ; ACTIVE GALACTIC NUCLEI ; GAMMA-RAY ABSORPTION ; LARGE-AREA TELESCOPE ; MULTIWAVELENGTH OBSERVATIONS ; ULTRARELATIVISTIC SHOCKS ; PARTICLE-ACCELERATION ; COMPTON ANALYSIS ; AGILE DETECTION ; CRAZY-DIAMOND |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/66/5/92 |
| 语种 | 英语 |
| WOS记录号 | WOS:000345780500010 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5037]  |
| 专题 | 云南天文台_高能天体物理研究组 |
| 作者单位 | Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Lei MC,Wang JC. Modeling the spectral energy distribution of 3C 454.3 in a "flat" broad-line region scenario[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2014,66(5). |
| APA | Lei MC,&Wang JC.(2014).Modeling the spectral energy distribution of 3C 454.3 in a "flat" broad-line region scenario.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,66(5). |
| MLA | Lei MC,et al."Modeling the spectral energy distribution of 3C 454.3 in a "flat" broad-line region scenario".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 66.5(2014). |
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来源：云南天文台
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