Physics
Scientific paper
Apr 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007chjaa...7..209x&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Volume 7, Issue 2, pp. 209-214 (2007).
Physics
1
Accretion: Accretion Disks, Black Hole Physics, Galaxies: Active, Galaxies: Emission Lines, Galaxies: Nuclei
Scientific paper
The physics behind the spectral energy distribution (SED) of blazars remains open. We assembled 36 blazars to tackle the factors that control their SED. Now, many blazar spectra have the ``double hump" feature in the radio and far-IR frequencies. For these a parameter, \triangle, is created to characterize the behavior of the SED. We found a significant correlation between the broad-line luminosity (L_{BLR}) and \triangle. Because L_{BLR} is an indicator of the accreting power of the source in blazars, we derived a linear correlation, \triangle ∝ dot{M}^{1/3.18}, which suggests that the SED of blazars may depend on the accretion rate, like that of BL Lac objects. We also found a significant correlation between dot{m} and \triangle for a sample of 11 blazars (out of one of 36) with available black hole masses. This implies the Eddington accretion ratio may influence the shape of the SED of blazars.
Dai Hong
Du Lei-Ming
Hao Jian-Ming
Xie Zhao-Hua
Zhang Xiong
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