The X-ray background 2 50 kev: A superposition of known sources, or evidence of a new component?
Abstract
The contribution of the canonical Quasars to the XRB 2 50 keV is not likely to exceed 50%. Nay, consideration of X-ray selection effects results in a further reduction of the value of sensible estimators for the intensity ratio LX/LO; in addition, recent counts of radioloud and radio-quiet Quasars definitely limit the number of faint sources. A “missing component” with definite spectral properties should comprise a sizeable fraction of the XRB.
- Publication:
-
Space Science Reviews
- Pub Date:
- March 1981
- DOI:
- 10.1007/BF01246006
- Bibcode:
- 1981SSRv...30..101C
- Keywords:
-
- Canonical Forms;
- Quasars;
- Radio Sources (Astronomy);
- X Ray Sources;
- Bremsstrahlung;
- Distribution Functions;
- Heao 2;
- Luminosity;
- Spectrum Analysis;
- Astrophysics