Mathematics – Spectral Theory
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.296..811s&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 811-812 (SEE N90-258
Mathematics
Spectral Theory
Active Galactic Nuclei, Astronomical Models, Background Radiation, X Ray Spectra, Emission Spectra, Galactic Structure, Spectral Signatures, Spectral Theory, Spectrum Analysis
Scientific paper
Theories of active galactic nuclei (AGN) predict the existence of numerous AGN with low energy X-ray cutoff in the 10 keV range. The main problem for models in which most of the X-ray background is due to AGNs is the incompatibility of the spectral properties. The resulting spectrum of the X-ray background produced by all AGN may reproduce the observed spectrum. The main obstacle against theories in which most of the X-ray background is due to AGN is removed.
Setti Giancarlo
Woltjer Lodewijk
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