| | |
| | |
Stat |
Members: 3643 Articles: 2'487'895 Articles rated: 2609
28 March 2024 |
|
| | | |
|
Article overview
| |
|
The central black hole masses and Doppler factors of the $gamma$-ray loud blazars | J.H. Fan
; G.Z. Xie
; R. Bacon
; | Date: |
20 Oct 1999 | Subject: | astro-ph | Affiliation: | CfA,GNU), G.Z. Xie (YAO,CAS), R. Bacon (CRAL | Abstract: | In this paper, The central black hole masses and the Doppler factors are derived for PKS 0528+134, PKS 0537-441, 3C279, PKS 1406-074, PKS 1622-297, Q1633+382, Mkn 501, and BL Lacertae. The masses obtained are in the range of (1 -7)$ imes 10^{7}M_{odot}$ and compared with that obtained with the Klein-Nishina cross section considered (Dermer & Gehrels 1995). If we considered only the Thomson cross section, the masses are in the range of 2.6$ imes 10^{6}M_{odot}$ - 2$ imes 10^{11}M_{odot}$. The masses obtained from our method are less sensitive to the flux than those obtained from Dermer & Gehrels (1995) method. The masses obtained from two flares (1991 and 1996 flares) of 3C279 are almost the same. For 3C279 and BL Lacertae, viewing angle, $ heta$, and Lorentz factor, $Gamma$, are estimated from the derived Doppler factor and the measured superluminal velocity. For 3C279, $ heta = 10^{circ}.9-15^{circ}.6$, $Gamma$ = 2.4-14.4 for $delta$ = 3.37; $ heta = 8^{circ}.45-9^{circ}.7$, $Gamma$ = 2.95-11.20 for $delta$ = 4.89; For BL Lacertae, $ heta = 25^{circ}-29^{circ}.4$, $Gamma$ = 2.0-4.0. | Source: | arXiv, astro-ph/9910358 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser claudebot
|
| |
|
|
|
| News, job offers and information for researchers and scientists:
| |