Hostname: page-component-76c49bb84f-zv2rg Total loading time: 0 Render date: 2025-07-06T12:21:29.169Z Has data issue: false hasContentIssue false
  • English
  • Français

Cosmic X-ray Background from Early Active Galactic Nuclei

Published online by Cambridge University Press:  07 August 2017

Andrzej A. Zdziarski
Andrzej A. Zdziarski*
Affiliation:
Space Telescope Science Institute, Homewood Campus, Baltimore, MD 21218, USA

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A model for the origin of the cosmic X-ray background (hereafter XRB) is presented. The component of the background left after subtraction of the known classes of sources is explained by emission from a population of black hole sources at the redshift of z ∼ 4–5. The model is presented in more detail elsewhere (Zdziarski 1988). Here, we summarize its most important results.

Information

Type
Part 3: X-rays and the Central Source
Information
Symposium - International Astronomical Union , Volume 134: Active Galactic Nuclei , 1989 , pp. 207 - 208
Copyright
Copyright © Kluwer 1989 

References

Begelman, M. C. 1979, M. N. R. A. S., 187, 237.Google Scholar
Cavaliere, A., and Morrison, P. 1980, Ap. J., 238, L63.Google Scholar
Hamilton, T. T., and Helfand, D. J. 1987, Ap. J., 318, 93.Google Scholar
Leiter, D., and Boldt, E. 1982, Ap. J., 260, 1.CrossRefGoogle Scholar
Mészáros, P. 1975, Nature, 258, 583.Google Scholar
Persic, M. et al. 1988, submitted.Google Scholar
Setti, G. 1985, in Non-Thermal and Very High Temperature Phenomena in X-Ray Astronomy, ed. Perola, G. C. and Salvati, M., (Rome), p. 159.Google Scholar
Svensson, R. 1984, M. N. R. A. S., 209, 175.Google Scholar
Zdziarski, A. A. 1988, M. N. R. A. S., in press.Google Scholar