ITP OpenIR  > 理论物理所科研产出  > SCI论文
Wang, TG; Zhou, YY; Gao, AS; Wang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA.
Relations between the optical Fe II emission and ultraviolet spectra in active galactic nuclei
Source PublicationASTROPHYSICAL JOURNAL
KeywordBroad-line Region Profiles Quasars Qsos Iue
AbstractOptical 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.
1996
ISSN0004-637X
Volume457Issue:1Pages:111-117
Subject AreaPhysics
Indexed BySCI
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Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/12661
Collection理论物理所科研产出_SCI论文
Corresponding AuthorWang, TG , UNIV SCI & TECHNOL CHINA,CTR ASTROPHYS,HEFEI 230026,ANHUI,PEOPLES R CHINA.
Recommended Citation
GB/T 7714
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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