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A TEST OF THE FORMATION MECHANISM OF THE BROAD LINE REGION IN ACTIVE GALACTIC NUCLEI
Czerny, B; Du P(杜璞); Wang JM(王建民); Du, P; Wang, JM; Karas, V
2016
发表期刊ASTROPHYSICAL JOURNAL
卷号832期号:1
通讯作者Bozena Czerny
文章类型Article
摘要The origin of the broad line region (BLR) in active galaxies remains unknown. It seems to be related to the underlying accretion disk, but an efficient mechanism is required to raise the material from the disk surface without giving signatures of the outflow that are too strong. in the case of the low ionization lines. We discuss in detail two proposed mechanisms: (1) radiation pressure acting on dust in the disk atmosphere creating a failed wind and. ( 2) the gravitational instability of the underlying disk. We compare the predicted location of the inner radius of the BLR in those two scenarios with the observed position obtained from the reverberation studies of several active galaxies. The failed dusty outflow model well represents the observational data while the predictions of the self-gravitational instability are not consistent with observations. The issue that remains is. why do we not see any imprints of the underlying disk instability in the BLR properties.
关键词galaxies: emission lines galaxies: active galaxies: individual: (NLR-BLR) quasars: emission lines radiative transfer
DOI10.3847/0004-637X/832/1/15
关键词[WOS]SUPERMASSIVE BLACK-HOLES ; SEYFERT 1 GALAXIES ; RADIUS-LUMINOSITY RELATIONSHIP ; GRAVITATING ACCRETION DISCS ; STAR-FORMATION ; OPTICAL WAVELENGTHS ; CIRCUMNUCLEAR DISKS ; EMISSION-LINES ; SELF-GRAVITY ; 3C 390.3
语种英语
WOS记录号WOS:000388203200004
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被引频次:5[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/311005/260777
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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Czerny, B,Du P,Wang JM,et al. A TEST OF THE FORMATION MECHANISM OF THE BROAD LINE REGION IN ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL,2016,832(1).
APA Czerny, B,杜璞,王建民,Du, P,Wang, JM,&Karas, V.(2016).A TEST OF THE FORMATION MECHANISM OF THE BROAD LINE REGION IN ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL,832(1).
MLA Czerny, B,et al."A TEST OF THE FORMATION MECHANISM OF THE BROAD LINE REGION IN ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL 832.1(2016).
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