Gamma-loud quasars: a view with BeppoSAX

Abstract

We present $Beppo$SAX observations of the $\gamma$-ray emitting quasars 0836+710, 1510-089 and 2230+114. All the objects have been detected in the PDS up to 100 keV and have extremely flat power-law spectra above 2 keV (${\alpha }_x$=0.3--0.5). 0836+710 shows absorption higher than the galactic value and marginal evidence for the presence of the redshifted 6.4 keV Iron line. 1510-089 shows a spectral break around 1 keV, with the low energy spectrum steeper (${\alpha }_l$=1.6) than the high energy power-law (${\alpha }_h$=0.3). The data are discussed in the light of current Inverse Compton models for the high energy emission.

4 pages, 2 figures, to appear in the proceedings of the conference "X-Ray Astronomy '99", Bologna, Italy, September 1999

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