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Variability of broad and blueshifted component of [OIII]lambda 5007 in I ZWI
Wang, J; Wei, JY; He, XT
2005-04-01
发表期刊NEW ASTRONOMY
卷号10期号:5页码:353-360
摘要Although the existence of asymmetrical profile of [OIII]lambda 5007 has been discovered for ages, its filiation and physics are poorly understood. Two new spectra of I ZWI taken on November 16, 2001 and on December 3, 2002 were compared with the spectra taken by BG92. Following results are obtained. (1) The certain variations of broad [OIII] during about 10 years separating the observations are identified. The inferred length scale of broad [OIII] emitting region ranges from 0.3 to 3 pc. By assuming a Keplerian motion in line emitting region, the material emitting broad [OIII] is likely to be located at the transient emission line region, between BLR and NLR. (2) We find a positive relation between the Fell emission and flux of HP (or continuum). On the other hand, the parameter RFe decreases with ionizing continuum marginally. (3) We detect a low ionized NLR in I ZWI, because of the low flux ratios [OIII](n)/H beta(n) (similar to 1.7). (C) 2005 Elsevier B.V. All rights reserved.
关键词Galaxies : Active Galaxies : Individual : i Zwi Quasars : Emission Lines
DOI10.1016/j.newast.2005.01.002
收录类别SCI
语种英语
WOS记录号WOS:000228790500001
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8147
专题空间科学研究部
作者单位1.Beijing Normal Univ, Dept Astron, Beijing, Peoples R China
2.Chinese Acad Sci, Xinglong Observ, Natl Astron Observ, Beijing 100012, Peoples R China
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Wang, J,Wei, JY,He, XT. Variability of broad and blueshifted component of [OIII]lambda 5007 in I ZWI[J]. NEW ASTRONOMY,2005,10(5):353-360.
APA Wang, J,Wei, JY,&He, XT.(2005).Variability of broad and blueshifted component of [OIII]lambda 5007 in I ZWI.NEW ASTRONOMY,10(5),353-360.
MLA Wang, J,et al."Variability of broad and blueshifted component of [OIII]lambda 5007 in I ZWI".NEW ASTRONOMY 10.5(2005):353-360.
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