NAOC Open IR
thevariabilitiesofthesoftandhardxraycomponentsofngc7314andngc7582andthedistributionofabsorbingmatterintypeagns
Zou Xianghua1; Xue Shijian2
2002
Source Publicationchinesejournalofastronomyandastrophysics
ISSN1009-9271
Volume002Issue:004Pages:352
AbstractASCA observations of the two Type Ⅱ AGNs,NGC7314 and NGC 7582,show clear variations in the broad X-ray band(0.4-10keV)on short timescales-10^4s.Spectral analysis indicates that they bot have an absorbed hard X-ray component and an unabsorbed soft“excess” component.To clarify the origin of the latter,we made a cross-correlation analysis of the two components.The results show that,for NGC7314,the soft X-ray variability is proportional to that of the hard X-ray component.This indicates that the active nucleus of NGC 7314 must be partially covered and so the soft emission is a “leaking” of the variable hard component.For NGC 7582,there is no detectable variability in the soft component, although there is a definite one in the hard component.This indicates that the variable nucleus of NGC 7582 must be fully blocked by absorbing matter,and the soft emission is most likely the scattered component predicted by the AGN unified model.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/51382
Collection中国科学院国家天文台
Affiliation1.北京大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Zou Xianghua,Xue Shijian. thevariabilitiesofthesoftandhardxraycomponentsofngc7314andngc7582andthedistributionofabsorbingmatterintypeagns[J]. chinesejournalofastronomyandastrophysics,2002,002(004):352.
APA Zou Xianghua,&Xue Shijian.(2002).thevariabilitiesofthesoftandhardxraycomponentsofngc7314andngc7582andthedistributionofabsorbingmatterintypeagns.chinesejournalofastronomyandastrophysics,002(004),352.
MLA Zou Xianghua,et al."thevariabilitiesofthesoftandhardxraycomponentsofngc7314andngc7582andthedistributionofabsorbingmatterintypeagns".chinesejournalofastronomyandastrophysics 002.004(2002):352.
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