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A study of the massive black hole in the center of the BL Lac object Mark 421
Zhang X(张雄); Xie GZ(谢光中); Zhao, G; Ma, L; Bai JM(白金明); Zhang, X
发表期刊ACTA PHYSICA SINICA
2000-02
卷号49期号:2页码:379-382
产权排序第1完成单位
收录类别SCI
摘要We report the observation of a dramatic outburst in the optical band from the BL Lac object Markarian 421(Mark 421). During this outburst, the brightness of Mark 421 increased rapidly by 1.34mag from B = 5.67 to B = 14.32 in 26 min. Another interesting fact is that this extremely rapid burst in the optical band is similar to the dramatic outburst of TeV photons which was obtained by Gaidos et al.(1996) in every essential respect, for example, the time scales on which they vary, and the shapes of the light curves. These data in the optical band and TeV gamma-rays suggest that they are both produced in the same emission region, and that the emission region is extremely small, R = 1.23 x 10(12)m. With these results, we prove that there is a massive black hole with M similar or equal to 2 x 10(6) M. in the center of Mark 421. This could provide a new challenge for current theoretical model of such emissions. We prove that the origin of TeV gamma-rays is by synchotron self-Compton.
语种英语
学科领域Physics
文章类型Article
ISSN1000-3290
归档日期2000-12-31
WOS记录号WOS:000085139300039
WOS研究方向Physics
WOS类目Physics, Multidisciplinary
关键词[WOS]CONFIRMATION
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被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6851
专题星系研究组
通讯作者Zhang, X
作者单位1.Chinese Acad Sci, Beijing Astron Observ, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Yunan Astron Observ, Kunming 65001, Peoples R China
3.Yunnan Normal Univ, Dept Phys, Kunming 650092, Peoples R China
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GB/T 7714
Zhang X,Xie GZ,Zhao, G,et al. A study of the massive black hole in the center of the BL Lac object Mark 421[J]. ACTA PHYSICA SINICA,2000,49(2):379-382.
APA Zhang X,Xie GZ,Zhao, G,Ma, L,Bai JM,&Zhang, X.(2000).A study of the massive black hole in the center of the BL Lac object Mark 421.ACTA PHYSICA SINICA,49(2),379-382.
MLA Zhang X,et al."A study of the massive black hole in the center of the BL Lac object Mark 421".ACTA PHYSICA SINICA 49.2(2000):379-382.
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