Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..939g&link_type=abstract
In ESA, The 23rd ESLAB Symposium on Two Topics in X Ray Astronomy. Volume 2: AGN and the X Ray Background p 939-943 (SEE N90-258
Astronomy and Astrophysics
Astronomy
Active Galactic Nuclei, Background Radiation, Stellar Luminosity, X Ray Spectra, Brightness Distribution, Galactic Evolution, Galactic Radiation, Light (Visible Radiation)
Scientific paper
Calculations are performed in order to estimate the Active Galactic Nuclei (AGN) contribution to the diffuse X-ray background. It is found that the optical luminosity function of Boyle et al. combined with the relation between Lx and L0 gives a low AGN contribution to the X-ray background. When evolving the local, X-ray, AGN luminosity function of Schmidt and Green it is found that AGN could account for the whole of the X-ray background. This discrepancy can be attributed to the different slopes of the optical and the X-ray luminosity function. This disagreement of the faint end slopes is probably due to the poor statistics of the X-ray data at low luminosities or less plausibly due to heavily reddened low luminosity AGN. Pure luminosity evolution is shown to be consistent with the X-ray background anisotropy at both the degree and arcminute angular scale.
Georgantopoulos Ioannis
Shanks Thomas
No associations
LandOfFree
Pure luminosity evolution and the AGN contribution to the 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 Pure luminosity evolution and the AGN contribution to the X ray background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pure luminosity evolution and the AGN contribution to the X ray background will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1615233