The estimations of four basic parameters for gamma-ray loud blazars

Details The estimations of four basic parameters for gamma-ray loud blazars The estimations of four basic parameters for gamma-ray loud blazars

Publishing date

May 2009

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009raa.....9..538f&link_type=abstract

Journals

Research in Astronomy and Astrophysics, Volume 9, Issue 5, pp. 538-546 (2009).

Science

Astronomy and Astrophysics

Field

Astrophysics

Additional info 2

2

Type

Scientific paper

Abstract

The method used in our previous papers is adopted to estimate four basic parameters (the central black hole mass (M), the boosting factor (or Doppler factor) (δ), the propagation angle (Φ) and the distance along the axis to the site of the γ-ray production (d)) for 59 γ-ray loud blazars (20 BL Lacertae objects and 39 flat spectrum radio quasars). The central black hole masses estimated for this sample are in a range of from 107 Modot to 109 Modot. In the case of black hole mass, there is no clear difference between BL Lacertae objects and flat spectrum radio quasars, which is consistent with the previous results suggesting that the central black hole masses do not play an important role in the evolutionary sequence of blazars.

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