The estimations of four basic parameters for gamma-ray loud blazars |
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| Authors: | Jun-Hui Fan Yu-Hai Yuan Yi Liu Jing-Yi Zhang Yi-Ping Qin Hua Liu Yong Huang Jiang-He Yang Hong-Guang Wang Jiang-Shui Zhang |
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| Institution: | [1]Center for Astrophysics, Guangzhou University, Guangzhou 510400, China [2]Department of Physics and Electronics Science, Hunan University of Arts and Science, Changde 415000, China |
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| Abstract: | The method used in our previous papers is adopted to estimate four basic pa-rameters (the central black hole mass (M), the boosting factor (or Doppler factor) (δ), the (d)) for 59 γ-ray loud blazars (20 BL Lacertae objects and 39 fiat spectrum radio quasars).The central black hole masses estimated for this sample are in a range of from 107 M⊙to 109 M⊙. 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 sug-gesting that the central black hole masses do not play an important role in the evolutionary sequence of blazars. |
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| Keywords: | galaxies quasars-galaxies BL Lacertae objects-galaxies jet-galax-ies nuclei |
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