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The X-Ray Spectra of Blazars: Analysis of the Complete EXOSAT Archive

Giommi, Paolo; Barr, Paul; Sambruna, Rita M. +3 more

We analyzed the 0.1-10 keV spectra of 26 blazars (21 BL Lac objects and 5 highly polarized quasars), on the basis of 93 exposures taken from the EXOSAT archives. Fits were performed first with a single power-law model. Indications are found that better fits can be obtained with models where the slope steepens at higher energies. We therefore consi…

High-Energy Spectra of Active Galactic Nuclei. I. The Catalog

Malaguti, G.; Bassani, L.; Caroli, E.

This paper presents a catalog of high-energy spectra (E >= 0.01 keV) of active galactic nuclei (AGNs). The catalog contains 209 objects (140 Seyfert galaxies, 65 quasars, and 4 objects otherwise classified), for a total of 1030 spectra. Most of the data have been collected from the literature over a period spanning more than 20 yr starting from…