Location of gamma-ray flaring region in quasar 4C+21.35
文献类型：期刊论文
| 作者 | Lei MC(雷买昌)1,2 ; Wang JC(王建成)1,2
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| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
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| 出版日期 | 2015-08 |
| 卷号 | 67期号:4 |
| 关键词 | galaxies: active gamma rays: general quasars: individual (4C+21.35) radiation mechanisms: non-thermal |
| 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 | 4C+21.35 is a flat-spectrum-radio-quasar-type blazar, in which the rapid variability of very high energy (VHE, E-gamma greater than or similar to 100 GeV) emission as short as similar to 10 min was observed by MAGIC Cherenkov telescopes, and the VHE spectrum extends up to at least 400 GeV. In this paper, by using a flat broad-line region (BLR) structure, we study the location and properties of the gamma-ray-emitting region of 4C+21.35 under the constraints of multiwavelength data. We fit three quasi-simultaneous spectral energy distributions using a homogeneous one-zone leptonic model, in which a flat BLR with aperture angle alpha = 25 degrees and a spherically symmetric hot dusty torus with a temperature of T-sub = 1200 K are assumed. The results show that the jet structure of 4C+21.35 is nearly conical with a half-opening angle of theta(j) similar or equal to 0 degrees.29-0 degrees.6. Furthermore, the emitting region is located within the BLR clouds and approaches the outer radius of the BLR during the flaring states, while it is well beyond the dusty torus in quiescent state. The quiescent high-energy emission is dominated by the synchrotron self-Compton process, the high-energy emission during the flaring periods is dominated by Compton scattering of BLR and dusty torus photons with a value of the Compton-dominance parameter of about 30. Moreover, the fit to optical/ultraviolet data provides further support that the central black hole mass of 4C+21.35 is 6x10(8) 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] | BL LACERTAE OBJECTS ; ACTIVE GALACTIC NUCLEI ; HIGH-ENERGY EMISSION ; BROAD-LINE REGION ; BLACK-HOLE MASS ; PKS 1222+216 ; RELATIVISTIC JETS ; COMPTON ANALYSIS ; HOT DUST ; BLAZARS |
| 收录类别 | SCI |
| 原文出处 | http://pasj.oxfordjournals.org/content/67/4/79 |
| 语种 | 英语 |
| WOS记录号 | WOS:000359649800023 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5044]  |
| 专题 | 云南天文台_高能天体物理研究组 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 Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, China |
| 推荐引用方式 GB/T 7714 | Lei MC,Wang JC. Location of gamma-ray flaring region in quasar 4C+21.35[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2015,67(4). |
| APA | Lei MC,&Wang JC.(2015).Location of gamma-ray flaring region in quasar 4C+21.35.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,67(4). |
| MLA | Lei MC,et al."Location of gamma-ray flaring region in quasar 4C+21.35".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 67.4(2015). |
入库方式： OAI收割
来源：云南天文台
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