ABSORPTION OF 10 GeV-1 TeV GAMMA RAYS FROM 3C 279
文献类型：期刊论文
| 作者 | Bai JM(白金明)1 ; Liu HT(刘洪涛)1; Ma, L2
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2009-07-10 |
| 卷号 | 699期号:2页码:2002-2008 |
| 关键词 | gamma rays: theory quasars: individual (3C 279) |
| ISSN号 | 0004-637X |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Ma, L (reprint author), Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China. |
| 英文摘要 | In this paper, we revisit gamma-ray-emitting region for 10 GeV-1 TeV gamma rays from 3C 279 through studying the photon-photon absorption optical depth due to the diffuse radiation of the broad-line region (BLR) and the extragalactic background light (EBL). Based on the power-law spectrum detected by MAGIC, the preabsorbed spectra are inferred by correcting the photon-photon absorption on the diffuse photons of the BLR (internal absorption) and the EBL (external absorption). Position of gamma-ray-emitting region R(gamma) determines the relative contributions of this two diffuse radiations to the total absorption. Our results indicate that R(gamma) may be within the BLR shell for 3C 279, likely closer to the inner radius, which is consistent with our previous results. This is neither consistent with the suggestions of Bottcher et al., that very high energy (VHE) gamma-ray emission is produced far outside the BLR, nor with the assumptions of Tavecchio and Mazin, that VHE gamma-ray-emitting region is inside the BLR cavity. R(gamma) is a key physical quantity that could set some constraints on emission mechanisms that produce the VHE gamma rays from 3C 279. Observations of Fermi-Large Area Telescope, MAGIC, H. E. S. S., and VERITAS in the near future could give more constraints on the position of gamma-ray-emitting region relative to the BLR. |
| 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] | EXTRAGALACTIC BACKGROUND LIGHT ; ACTIVE GALACTIC NUCLEI ; BROAD-LINE REGION ; INTERGALACTIC INFRARED RADIATION ; HIGH-ENERGY EMISSION ; 2ND EGRET CATALOG ; UPPER LIMITS ; BLAZAR 3C-279 ; MARKARIAN 501 ; LOUD BLAZARS |
| 收录类别 | SCI |
| 原文出处 | http://iopscience.iop.org/0004-637X/699/2/2002/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000267401500095 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/5386]  |
| 专题 | 云南天文台_丽江天文观测站（南方基地） |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming, Yunnan 650011, China 2.Physics Department, Yunnan Normal University, Kunming 650092, China |
| 推荐引用方式 GB/T 7714 | Bai JM,Liu HT,Ma, L. ABSORPTION OF 10 GeV-1 TeV GAMMA RAYS FROM 3C 279[J]. ASTROPHYSICAL JOURNAL,2009,699(2):2002-2008. |
| APA | Bai JM,Liu HT,&Ma, L.(2009).ABSORPTION OF 10 GeV-1 TeV GAMMA RAYS FROM 3C 279.ASTROPHYSICAL JOURNAL,699(2),2002-2008. |
| MLA | Bai JM,et al."ABSORPTION OF 10 GeV-1 TeV GAMMA RAYS FROM 3C 279".ASTROPHYSICAL JOURNAL 699.2(2009):2002-2008. |
入库方式： OAI收割
来源：云南天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。