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BL Lac天体Mark 421中心黑洞质量的研究
Alternative TitleA study of the massive black hole in the center of the BL Lac object Mark 421
张雄1,3; 谢光中2; 赵刚1; 马力3; 白金明2
Source Publication物理学报(ACTA PHYSICA SINICA)
Contribution Rank第2完成单位
Indexed BySCI ; EI ; CSCD ; 核心


Other Abstract

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.

Funding Project云南省自然科学基金[97A017M]
Funding Organization云南省自然科学基金[97A017M]
Subject Area物理学
MOST Discipline Catalogue理学 ; 理学::物理学
Publication PlaceP O BOX 603, BEIJING 100080, PEOPLES R CHINA
Archive Date2000-12-31
WOS IDWOS:000085139300039
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
EI Accession Number2004057958962
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author张雄
Affiliation1.中国科学院北京天文台, 北京, 100080
2.中国科学院云南天文台, 昆明, 650011
3.云南师范大学物理系, 昆明, 650092
Recommended Citation
GB/T 7714
张雄,谢光中,赵刚,等. BL Lac天体Mark 421中心黑洞质量的研究[J]. 物理学报(ACTA PHYSICA SINICA),2000,49(2):379-382.
APA 张雄,谢光中,赵刚,马力,&白金明.(2000).BL Lac天体Mark 421中心黑洞质量的研究.物理学报(ACTA PHYSICA SINICA),49(2),379-382.
MLA 张雄,et al."BL Lac天体Mark 421中心黑洞质量的研究".物理学报(ACTA PHYSICA SINICA) 49.2(2000):379-382.
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