The broad-band X-ray spectrum of a QSO sample
Abstract
A sample of 25 QSOs was used to investigate the average spectrum between the soft X-ray energy band of the Einstein Observatory image proportional counter, and the higher energy band of the HEAO 1 A2 experiment. The spectrum is similar to thoe exhibited by Seyfert galaxies and narrow emission line galaxies above 2 keV. The spectrum is soft enough that if these objects are typical of the higher redshift, more radio-quiet QSOs, then it is possible to exclude QSOs as being the dominant origin of the diffuse X-ray background.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- July 1983
- Bibcode:
- 1983STIN...8433333W
- Keywords:
-
- Broadband;
- Quasars;
- Seyfert Galaxies;
- X Ray Sources;
- X Ray Spectra;
- Emission Spectra;
- Flux Density;
- Galactic Nuclei;
- Heao 1;
- Heao 2;
- Line Spectra;
- Red Shift;
- X Ray Spectroscopy;
- Space Radiation