| Radio/X-ray offsets of large-scale jets caused by synchrotron time lags | |
Bai JM(白金明)1,2 ; Lee, MG1,3; Bai, JM (reprint author), Seoul Natl Univ, Sch Earth & Environm Sci, Astron Program, Seoul 151742, South Korea.
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| 发表期刊 | ASTROPHYSICAL JOURNAL
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| 2003-03-10 | |
| 卷号 | 585期号:2页码:L113-L116 |
| DOI | 10.1086/374304 |
| 产权排序 | 第2完成单位 |
| 收录类别 | SCI |
| 关键词 | Galaxies : Active Galaxies : Jets Radiation Mechanisms : Nonthermal X-rays : Galaxies |
| 摘要 | In the internal shock scenario, we argue that electrons in most kiloparsec-scale (or even larger) jets can be accelerated to energies high enough to emit synchrotron X-rays, if shocks exist on these scales. These high-energy electrons emit synchrotron radiation at high frequencies and cool as they propagate downstream along the jet, emitting at progressively lower frequencies and resulting in time lags and hence radio/X-ray (and optical/ X-ray if the optical knot is detectable) offsets at bright knots, with the centroids of X-ray knots being closer to the core. Taking into account the strong effects of jet expansion, the behavior of radio/X-ray and optical/ X-ray offsets at bright knots in M87, Centaurus A, 3C 66B, 3C 31, 3C 273, and PKS 1127-145 is consistent with that of synchrotron time lags due to radiative losses. This suggests that the large-scale X-ray and optical jets in these sources are due to synchrotron emission. |
| 语种 | 英语 |
| 学科领域 | Astronomy & Astrophysics |
| 文章类型 | Article |
| ISSN | 0004-637X |
| URL | 查看原文 |
| WOS记录号 | WOS:000181287300010 |
| WOS研究方向 | Astronomy & Astrophysics |
| WOS类目 | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; PARTICLE-ACCELERATION ; ELECTRON ACCELERATION ; CHANDRA OBSERVATIONS ; M87 JET ; BLAZARS ; PKS-2155-304 ; EMISSION ; PKS-0637-752 ; VARIABILITY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ynao.ac.cn/handle/114a53/6962 |
| 专题 | 星系研究组 |
| 通讯作者 | Bai, JM (reprint author), Seoul Natl Univ, Sch Earth & Environm Sci, Astron Program, Seoul 151742, South Korea. |
| 作者单位 | 1.Astronomy Program, School of Earth and Environmental Sciences, Seoul National University, Seoul 151-742, Korea 2.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China 3.Carnegie Institution of Washington, Department of Terrestrial Magnetism, 5241 Broad Branch Road, NW, Washington, DC 20015-1305 |
| 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,Lee, MG,Bai, JM . Radio/X-ray offsets of large-scale jets caused by synchrotron time lags[J]. ASTROPHYSICAL JOURNAL,2003,585(2):L113-L116. |
| APA | Bai JM,Lee, MG,&Bai, JM .(2003).Radio/X-ray offsets of large-scale jets caused by synchrotron time lags.ASTROPHYSICAL JOURNAL,585(2),L113-L116. |
| MLA | Bai JM,et al."Radio/X-ray offsets of large-scale jets caused by synchrotron time lags".ASTROPHYSICAL JOURNAL 585.2(2003):L113-L116. |
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| Radio_X-Ray Offsets （54KB） | 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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