Correlation between -ray flux density and redshift for Fermi blazars
Abstract
Blazars are strong -ray emitters, the -ray emissions are likely strongly beamed, therefore, one should use the intrinsic (de-beamed) emissions to investigate its emission nature. In this work, we compiled a sample of Fermi blazars with available beaming Doppler factors, , to investigate the correlation between -ray flux density, , and redshift, . The analysis shows that there is no correlation between and for the observed -ray flux density, but there is a clear strong correlation between the intrinsic flux densities, and . We also discussed the relationship of -ray luminosity and short time scale for the observed data and the intrinsic data. Our analysis suggests that the intrinsic -ray flux density obeys the flux density and redshift relation, and the jet in -rays maybe a continuous case. The intrinsic luminosity and the short time scales obey the Elliot and Shapiro relation and Abramowicz and Nobili relation as well.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- September 2015
- DOI:
- 10.1007/s10509-015-2433-1
- Bibcode:
- 2015Ap&SS.359...39X
- Keywords:
-
- Galaxies;
- Active-galaxies;
- BL Lacertae objects-galaxies;
- Quasars-galaxies;
- Jets