Hard X-rays emission from active galactic nuclei |
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| Authors: | P Ubertini A Bazzano CD La Padula VF Polcaro G Zambon RK Manchanda |
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| 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. |
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