THE BLAZAR GAMMA-RAY LUMINOSITY FUNCTION AND THE DIFFUSE EXTRAGALACTIC GAMMA-RAY BACKGROUND

Authors
SALAMON MH STECKER FW
Citation
Mh. Salamon et Fw. Stecker, THE BLAZAR GAMMA-RAY LUMINOSITY FUNCTION AND THE DIFFUSE EXTRAGALACTIC GAMMA-RAY BACKGROUND, The Astrophysical journal, 430(1), 1994, pp. 120000021-120000024
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
430
Issue
1
Year of publication
1994
Part
2
Pages
120000021 - 120000024
Database
ISI
SICI code
0004-637X(1994)430:1<120000021:TBGLFA>2.0.ZU;2-I
Abstract
We have used the data from the new EGRET catalog on ''grazars'' (blaza rs which are observed to be high-energy gamma-ray sources), together w ith radio data, to construct a new relation between radio and gamma-ra y luminosity for these sources. Using this relation to construct a gra zar gamma-ray luminosity function, we then calculate the contribution of unresolved grazars to the cosmic gamma-ray background radiation. We derive the energy spectrum of this background component above 100 MeV and the angular fluctuations in this background implied by our model.