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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.
Source PublicationASTROPHYSICAL JOURNAL
2003-03-10
Volume585Issue:2Pages:L113-L116
DOI10.1086/374304
Contribution Rank第2完成单位
Indexed BySCI
KeywordGalaxies : Active Galaxies : Jets Radiation Mechanisms : Nonthermal X-rays : Galaxies
AbstractIn 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.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-637X
URL查看原文
WOS IDWOS:000181287300010
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordACTIVE GALACTIC NUCLEI ; PARTICLE-ACCELERATION ; ELECTRON ACCELERATION ; CHANDRA OBSERVATIONS ; M87 JET ; BLAZARS ; PKS-2155-304 ; EMISSION ; PKS-0637-752 ; VARIABILITY
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Cited Times:23[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6962
Collection星系研究组
Corresponding AuthorBai, JM (reprint author), Seoul Natl Univ, Sch Earth & Environm Sci, Astron Program, Seoul 151742, South Korea.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
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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