Black Hole Masses of Weak Emission Line Quasars Based on the Continuum Fit Method

被引：8
|
作者：
Marculewicz, Marcin [1 ]
Nikolajuk, Marek [1 ]
机构：
[1] Univ Bialystok, Fac Phys, Ciolkowskiego 1L St, PL-15245 Bialystok, Poland
来源：
ASTROPHYSICAL JOURNAL | 2020年 / 897卷 / 02期
关键词：
ACTIVE GALACTIC NUCLEI; SPECTRAL ENERGY-DISTRIBUTION; ACCRETION RATES; REVERBERATION; REGION; GALAXIES; BRIGHT; AGN; CONSTRAINTS; LUMINOSITY;
D O I：
10.3847/1538-4357/ab9597
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We studied optical-ultraviolet spectral energy distribution of 10 weak emission-line quasars (WLQs) that lie at redshifts z = 0.19 and 1.43 z < 3.48. The theoretical models of their accretion disk continua are created based on the Novikov-Thorne equations. It allows us to estimate masses of their supermassive black holes (M-BH) and accretion rates. We determined the virial factor for WLQs and note its anticorrelation with the FWHM of the H beta emission line (f proportional to FWHM alpha, alpha = -134 +/- 0.37). By comparison with the previously estimated factor of 4-5, which depends on the measured full width. We proposed a new formula to estimate in WLQs based on their observed (H beta) and luminosities at 5100 A. In our opinion, WLQs are also normal quasars visible in a reactivation stage.
引用
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页数：10
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