ITP OpenIR  > 理论物理所1978-2010年知识产出
Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei
Wang, TG; Zhou, YY; Gao, AS; Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA.
1996
发表期刊ASTROPHYSICAL JOURNAL
ISSN0004-637X
卷号457期号:1页码:111-117
摘要Optical Fe II emission is a general characteristic of most active galactic nuclei, but the physical conditions in the Fe II-emitting region are not yet understood. The current photoionization models underpredict the total Fe II intensity as well as optical Fe II/H beta ratio. In this paper, we report the results of a statistical analysis of the relation between the optical Fe II strength from the literature and the UV spectra from IUE. We find that Fe II/H beta is strongly correlated with I(lambda 1400)/I(C IV) and I(C IV)/I(Ly alpha). The equivalent widths of optical Fe II and C IV are significantly anticorrelated. While no firm conclusions have been reached, the Fe II strength might be expected to be influenced by (1) the inclination of the accretion disk, (2) the spectrum of the ionizing continuum, and (3) the volume and column densities of the emission-line gas.
部门归属CHINESE CTR ADV SCI & TECHNOL,BEIJING 100080,PEOPLES R CHINA; CHINESE ACAD SCI,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA
关键词Broad-line Region Profiles Quasars Qsos Iue
学科领域Physics
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收录类别SCI
WOS记录号WOS:A1996TP70500009
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12661
专题理论物理所1978-2010年知识产出
通讯作者Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA.
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Wang, TG,Zhou, YY,Gao, AS,et al. Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei[J]. ASTROPHYSICAL JOURNAL,1996,457(1):111-117.
APA Wang, TG,Zhou, YY,Gao, AS,&Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA..(1996).Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei.ASTROPHYSICAL JOURNAL,457(1),111-117.
MLA Wang, TG,et al."Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei".ASTROPHYSICAL JOURNAL 457.1(1996):111-117.
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