| ABSORPTION OF 10 GeV-1 TeV GAMMA RAYS FROM 3C 279 | |
Bai JM(白金明)1 ; Liu HT(刘洪涛)1; Ma, L2; Ma, L (reprint author), Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2009-07-10 | |
| 卷号 | 699期号:2页码:2002-2008 |
| DOI | 10.1088/0004-637X/699/2/2002 |
| 产权排序 | 第1完成单位 |
| 收录类别 | SCI |
| 关键词 | Gamma Rays: Theory Quasars: Individual (3c 279) |
| 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. |
| 项目资助者 | Training Programme for the Talents of West Light Foundation of the CAS ; National Natural Science Foundation of China (NSFC) [10533050, 10778702] ; NSFC [10778726] ; CAS, China [2009CB824800] |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| 归档日期 | 2009-06-29 |
| WOS记录号 | WOS:000267401500095 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | 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 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/5386 |
| 专题 | 南方基地 |
| 通讯作者 | Ma, L (reprint author), Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China. |
| 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 |
| 第一作者单位 | 中国科学院云南天文台 |
| 推荐引用方式 GB/T 7714 | Bai JM,Liu HT,Ma, L,et al. 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,&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. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| ABSORPTION OF 10 GeV（278KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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