1999A&AS..136...13F


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.18CEST15:49:35

1999A&AS..136...13F - Astron. Astrophys., Suppl. Ser., 136, 13-18 (1999/April-1)

The central black hole masses and Doppler factors of the γ-ray loud blazars.

FAN J.H., XIE G.Z. and BACON R.

Abstract (from CDS):

In this paper, the central black hole masses and the Doppler factors are derived for PKS 0528+134, PKS 0537-441, 3C 279, PKS 1406-074, PKS 1622-297, Q1633+382, Mkn 501, and BL Lacertae. The masses obtained are in the range of (1-7)x107 M and compared with that obtained with the Klein-Nishina cross section considered (Dermer & Gehrels, 1995ApJ...447..103D). If we considered only the Thomson cross section, the masses are in the range of 2.6x106M-2x1011M. The masses obtained from our method are less sensitive to the flux than those obtained from Dermer & Gehrels (1995ApJ...447..103D) method. The masses obtained from two flares (1991 and 1996 flares) of 3C 279 are almost the same. For 3C 279 and BL Lacertae, viewing angle, θ, and Lorentz factor, Γ, are estimated from the derived Doppler factor and the measured superluminal velocity. For 3C 279, θ=10.9°-15.6°, Γ=2.4-14.4 for δ=3.37; θ=8.45°-9.7°, Γ=2.95-11.20 for δ=4.89; for BL Lacertae, θ= 25.°-29.4°, Γ=2.0-4.0.

Abstract Copyright:

Journal keyword(s): black holes - BL Lacertae objects - galaxies: jets

CDS comments: PKS 1406-074 misprint for PKS 1406-076

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 QSO J0530+13 Bla 05 30 56.41672 +13 31 55.1495     20.0 19.35   ~ 896 1
2 QSO B0537-441 BLL 05 38 50.36155219 -44 05 08.9389165   15.77 16.48 16   ~ 807 2
3 3C 279 Bla 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2779 2
4 QSO B1406-076 QSO 14 08 56.48120036 -07 52 26.6664200   20.3 18.4     ~ 278 1
5 QSO B1622-297 Bla 16 26 06.02083867 -29 51 26.9710860   18.41 20.5 17.6   ~ 379 0
6 4C 38.41 QSO 16 35 15.492970280 +38 08 04.50062279   18.14 17.97 17.25   ~ 769 1
7 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1967 2
8 NAME BL Lac BLL 22 02 43.2913773726 +42 16 39.978417860   15.66 14.72     ~ 2049 1

    Equat.    Gal    SGal    Ecl

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