Model for the redshift and luminosity distributions of gamma ray blazars

Details Model for the redshift and luminosity distributions of gamma ray blazars Model for the redshift and luminosity distributions of gamma ray blazars

Apr 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..510..425d&link_type=abstract

THE FIFTH COMPTON SYMPOSIUM. AIP Conference Proceedings, Volume 510, pp. 425-429 (2000).

Mathematics

Logic

2

Active And Peculiar Galaxies And Related Systems, Radiation Mechanisms, Polarization, Cosmology

Scientific paper

A simple model is used to fit the redshift and luminosity distributions of gamma-ray blazars observed with EGRET. The model consists of collimated relativistic bulk plasma outflow, with radiation beamed along the jet axis due to Doppler boosting. The EGRET detection sensitivity is used to assess source detectability. The best-fit Doppler factors and intrinsic source luminosities are obtained from fits to the BL Lac object (BL) and flat spectrum radio quasar (FSRQ) distributions, assuming that the source density distributions follows the star formation rate history of the universe. Predictions for the detectability of blazars with GLAST are made. We argue that GLAST will detect a much larger fraction of BLs in its sample than found by EGRET in consequence of the weaker cosmological effects on detectability of the nearer BLs. .

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