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题名: Are the broad optical Balmer lines in PG 1613+658 from the central accretion disc?
作者: Zhang XueGuang(张雪光)1, 2
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2015-02-11
卷号: 447, 期号:1, 页码:L35-L39
关键词: galaxies: active ; galaxies: individual: PG1613+658 ; galaxies: nuclei ; quasars: emission lines
学科分类: 天文和天体物理
DOI: 10.1093/mnrasl/slu172
文章类型: Article
英文摘要: In this letter, we report on the positive correlations between the broad-line width and broadline flux for the broad Balmer lines of the active galactic nucleus (AGN) PG 1613+658, which has been observed for a long time. Rather than the expected negative correlations that come with the widely accepted virialization assumption for AGN broad emission-line regions (BLRs), the positive correlations indicate very different BLR structures of PG 1613+658 from the commonly considered BLR structures that are dominated by the equilibrium between radiation pressure and gas pressure. Therefore, it is preferable to assume that the observed broad single-peaked optical Balmer lines of PG 1613+658 originate from the accretion disc, because the mainly gravity-dominated disc-like BLRs with radial structures have few effects from radiation pressure.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
关键词[WOS]: ACTIVE GALACTIC NUCLEI ; VELOCITY-DELAY MAPS ; BLACK-HOLE ; H-ALPHA ; EMISSION-LINES ; 3C 390.3 ; REGION ; GALAXIES ; AGN ; LUMINOSITY
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000360552300008
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14890
Appears in Collections:南极天文中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Ctr Antarctic Astron, Nanjing 210008, Jiangsu, Peoples R China
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