Diagnostics for the structure of AGNs' broad line regions with reverberation mapping data: confirmation of the two-component broad line region model
Zhu, L; Zhang SN(张双南); Zhang, SN
刊名SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
2010
卷号53期号:1页码:#REF!
关键词broad line region AGN Reverberation Mapping cross correlation
学科分类Physics
DOI10.1007/s11433-010-0057-6
通讯作者Zhang, SN (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China.
文章类型Article
英文摘要We re-examine the ten Reverberation Mapping (RM) sources with public data based on the two-component model of the Broad Line Region (BLR). In fitting their broad H beta Mlines, six of them only need one Gaussian component, one of them has a double-peak profile, one has an irregular profile, and only two of them need two components, i.e., a Very Broad Gaussian Component (VBGC) and an Inter-Mediate Gaussian Component (IMGC). The Gaussian components are assumed to come from two distinct regions in the two-component model; they are the Very Broad Line Region (VBLR) and the Inter-Mediate Line region (IMLR). The two sources with a two-component profile are Mrk 509 and NGC 4051. The time lags of the two components of both sources satisfy t(IMLR)/t(VBLR)=V(VBLR)(2)/V(IMLR)(2), where t(IMLR) and t(VBLR) are the lags of the two components while V(IMLR) and V(VBLR) represent the mean gas velocities of the two regions, supporting the two-component model of the BLR of Active Galactic Nuclei (AGNs). The fact that most of these ten sources only have the VBGC confirms the assumption that RM mainly measures the radius of the VBLR; consequently, the radius obtained from the R-L relationship mainly represents the radius of VBLR. Moreover, NGC 4051, with a lag of about 5 days in the one component model, is an outlier on the R-L relationship as shown in Kaspi et al. (2005); however this problem disappears in our two-component model with lags of about 2 and 6 days for the VBGC and IMGC, respectively.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
WOS记录号WOS:000280291800045
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226867
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
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Zhu, L,Zhang SN,Zhang, SN. Diagnostics for the structure of AGNs' broad line regions with reverberation mapping data: confirmation of the two-component broad line region model[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2010,53(1):#REF!.
APA Zhu, L,张双南,&Zhang, SN.(2010).Diagnostics for the structure of AGNs' broad line regions with reverberation mapping data: confirmation of the two-component broad line region model.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,53(1),#REF!.
MLA Zhu, L,et al."Diagnostics for the structure of AGNs' broad line regions with reverberation mapping data: confirmation of the two-component broad line region model".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 53.1(2010):#REF!.
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