On the contribution of active galactic nuclei to the diffuse X-ray background

Details On the contribution of active galactic nuclei to the diffuse X-ray background On the contribution of active galactic nuclei to the diffuse X-ray background

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....63l..13a&link_type=abstract

Astronomy and Astrophysics, vol. 63, no. 3, Feb. 1978, p. L13-L16. Research supported by the United States-Israel Binational Sc

Astronomy and Astrophysics

Astrophysics

24

Active Galactic Nuclei, Background Radiation, Cosmology, X Ray Sources, Astronomical Models, Galactic Evolution, Quasars, Seyfert Galaxies

Scientific paper

It is shown that cosmological evolution has a pronounced effect on the contributions of active galactic nuclei to the diffuse X-ray background. The dependence of such contributions on the form and amount of density evolution, on the deceleration parameter, and on the formation epoch is obtained. In particular, it is found that X-ray Seyferts can account for all of the observed 2-10-keV background when the effects of evolution are considered; the required amount of evolution is intermediate between the evolution of quasars and no evolution.

Affiliated with

Also associated with

No associations

Rating

On the contribution of active galactic nuclei to the diffuse X-ray background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the contribution of active galactic nuclei to the diffuse X-ray background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the contribution of active galactic nuclei to the diffuse X-ray background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1033902