The De-beamed γ-Ray Emissions in Blazars. Issue Volume 9:Issue S304(2013) (25th July 2014)

• Record Type: Journal Article
• Authors: Fan, J. H.; Ji, Z. Y.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 9:Issue S304(2013)
• Page Start: 159
• Page End: 160
• Publication Date: 2014-07-25
• Subjects: galaxies:active-galaxies:BL Lacertae objects-galaxies:quasars-galaxies:jets; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921314003639
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Blazars (BL Lacertae objects and flat spectrum radio quasars) are strong γ-ray emitters, the γ-ray emissions are strongly beamed. In this work, we compiled a sample of Fermi blazars with available beaming factors, δ R, to investigate the correlation between the γ-ray flux density, log f γ, and redshift, log z for the whole sample and the subclasses of the present sample. The analysis shows that there is no correlation between log f γ and log z for the observed γ-ray flux density, but there are strong correlations between the de-beamed flux densities, log f γ db and log z for the whole sample and the subclasses. Our results confirm that the γ-ray emissions are strongly beamed and imply that it is possible for one to use the radio beaming factor, δ R for the beaming effect discussions in the γ-ray bands for Fermi blazars.