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Central black hole mass determination for blazars

Published online by Cambridge University Press:  01 July 2007

J. H. Fan ,
Y. H. Yuan ,
Y. Huang ,
Y. Gao ,
T. X. Hua  and
Y. Liu
J. H. Fan
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
Y. H. Yuan
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
Y. Huang
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
Y. Gao
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
T. X. Hua
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
Y. Liu
Affiliation:
Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
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Abstract

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In this paper, we used the method to determine the central black mass (M), and the boosting factor (δ), the propagation angle (Φ), and the distance along the axis to the site of the γ-ray production (d) as well for 32 γ-ray loud blazars with available variability timescales. If we take the intrinsic γ-ray luminosity to be λ times the Eddington luminosity, i.e. , then we have following results: the masses of the black hole are in the range of (0.9 ~ 101)×107M⊙(λ = 1.0) or (1.30 ~ 153)×107M⊙(λ=0.1).

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