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THE FUNDAMENTAL PLANE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI
Du P(杜璞); Wang JM(王建民); Hu C(胡晨); Li YR(李彦荣); Du, P; Wang, JM; Hu, C; Ho, LC; Li, YR; Bai, JM
2016
Source PublicationASTROPHYSICAL JOURNAL LETTERS
ISSN2041-8205
EISSN2041-8213
Volume818Issue:1Pages:L14
SubtypeArticle
AbstractBroad emission lines in active galactic nuclei (AGNs) mainly arise from gas photoionized by continuum radiation from an accretion disk around a central black hole. The shape of the broad-line profile, described by D-H beta = FWHM/sigma(H beta), the ratio of full width at half maximum to the dispersion of broad H beta, reflects the dynamics of the broad-line region (BLR) and correlates with the dimensionless accretion rate (M)over dot or Eddington ratio (L-bol/L-Edd). At the same time, Mover dot and L-bol/L-Edd correlate with R-Fe, the ratio of optical Fe II to H beta line flux emission. Assembling all AGNs with reverberation mapping measurements of broad H beta, both from the literature and from new observations reported here, we find a strong bivariate correlation of the form log(Mover dot, Lbol/LEdd) = alpha + beta D-H beta + gamma R-Fe, where alpha = (2.47, 0.31), beta = (1.59, 0.82), and gamma = (1.34, 0.80). We refer to this as the fundamental plane of the BLR. We apply the plane to a sample of z < 0.8 quasars to demonstrate the prevalence of super-Eddington accreting AGNs are quite common at low redshifts.
Keywordaccretion, accretion disks galaxies: active galaxies: nuclei quasars: general quasars: supermassive black holes
DOI10.3847/2041-8205/818/1/L14
Indexed BySCI ; ADS
Language英语
WOS IDWOS:000369605600014
ADS Bibcode2016ApJ...818L..14D
ADS URLhttps://ui.adsabs.harvard.edu/abs/2016ApJ...818L..14D
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2016ApJ...818L..14D/citations
Citation statistics
Cited Times:46 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/247877
Collection中国科学院高能物理研究所
Recommended Citation
GB/T 7714
Du P,Wang JM,Hu C,et al. THE FUNDAMENTAL PLANE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI[J]. ASTROPHYSICAL JOURNAL LETTERS,2016,818(1):L14.
APA 杜璞.,王建民.,胡晨.,李彦荣.,Du, P.,...&Bai, JM.(2016).THE FUNDAMENTAL PLANE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI.ASTROPHYSICAL JOURNAL LETTERS,818(1),L14.
MLA 杜璞,et al."THE FUNDAMENTAL PLANE OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI".ASTROPHYSICAL JOURNAL LETTERS 818.1(2016):L14.
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