Quasar SDSS J142507.32+323137.4: dual AGNs?
Peng, ZX; Chen, YM; Gu, QS; Hu, C; Hu C(胡晨)
刊名RESEARCH IN ASTRONOMY AND ASTROPHYSICS
2011
卷号11期号:4页码:411-418
关键词galaxies: active galaxies: individual (SDSS J142507.32+323137.4) quasars: emission lines
学科分类Astronomy & Astrophysics
通讯作者[Peng, Zhi-Xin ; Chen, Yan-Mei ; Gu, Qiu-Sheng] Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China ; [Peng, Zhi-Xin ; Chen, Yan-Mei ; Gu, Qiu-Sheng] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Peoples R China ; [Hu, Chen] 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 analyze the optical spectrum of type 1 QSO SDSS J1425+3231. This object is interesting since its narrow emission lines, such as [O III]lambda lambda 4959, 5007, are double-peaked, and the line structure can be modeled well by three Gaussian components: two components for the two peaks (we refer to the peaks at low/high redshift as "the blue/red component") and another one for the line wing which has the same line center as that of the blue component, but is similar to 3 times broader. The separation between the blue and red components is similar to 500 km s(-1) with the blue component being similar to 2 times broader than the red one. The H beta emission can be separated into four components: two for the double-peaked narrow line and two for the broad line which comes from the broad line regions. The black hole mass estimated from the broad H beta emission line using the typical reverberation mapping relation is 0.85 x 10(8) M-circle dot, which is consistent with that derived from parameters of [O III]lambda 5007 of the blue component. We suggest that this QSO might be a dual AGN system; the broad H beta emission line is mainly contributed by the primary black hole (traced by the blue component) while the broad H beta component of the secondary black hole (traced by the red component) :is hard to be separated out considering a resolution of similar to 2000 for SDSS spectra or it may be totally obscured by the dusty torus.
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
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语种英语
WOS记录号WOS:000289611900004
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被引频次:9[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/311005/237370
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
作者单位中国科学院高能物理研究所
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Peng, ZX,Chen, YM,Gu, QS,et al. Quasar SDSS J142507.32+323137.4: dual AGNs?[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(4):411-418.
APA Peng, ZX,Chen, YM,Gu, QS,Hu, C,&胡晨.(2011).Quasar SDSS J142507.32+323137.4: dual AGNs?.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(4),411-418.
MLA Peng, ZX,et al."Quasar SDSS J142507.32+323137.4: dual AGNs?".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.4(2011):411-418.
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