Abstract
The beaming effect is important for understanding the observational properties of blazars. In this work, we collect 91 Fermi blazars with available radio Doppler factors. γ-ray Doppler factors are estimated and compared with radio Doppler factors for some sources. The intrinsic (de-beamed) γ-ray flux density (), intrinsic γ-ray luminosity () and intrinsic synchrotron peak frequency () are calculated. Then we study the correlations between and redshift and find that they follow the theoretical relation: . When the subclasses are considered, we find that stationary jets are perhaps dominant in low synchrotron peaked blazars. Sixty-three Fermi blazars with both available short variability time scales () and Doppler factors are also collected. We find that the intrinsic relationship between and obeys the Elliot & Shapiro and Abramowicz & Nobili relations. Strong positive correlation between and is found, suggesting that synchrotron emissions are highly correlated with γ-ray emissions.
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