Hard X-rays emission from active galactic nuclei
Abstract
The X-Rays emission from Active Galactic Nuclei has been known since the first observations obtained by Uhuru. their X-Rays spectra are determining to investigate the radiation process and for the diffuse X-Rays background problem.
We will present spectral observations of AGN's in the range 20-100 KeV obtained with a one square meter area balloon borne experiment. From the comparison with previous data a clear evidence of flux variability is obtained.- Publication:
-
Advances in Space Research
- Pub Date:
- 1984
- DOI:
- 10.1016/0273-1177(84)90091-7
- Bibcode:
- 1984AdSpR...3j.211U