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High Energy Properties of X-ray Sources observed with BeppoSAX

F. Frontera·D. Dal Fiume·G. Malaguti·L. Nicastro·M. Orlandini·E. Palazzi·E. Pian·F. Favata·A. Santangelo
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Abstract

We report on highlight results on celestial sources observed in the high energy band (>20 keV) with BeppoSAX. In particular we review the spectral properties of sources that belong to different classes of objects, i.e. stellar coronae (Algol), supernova remnants (Cas A), low mass X-ray binaries (Cygnus X-2 and the X-ray burster GS1826-238), black hole candidates (Cygnus X-1) and Active Galactic Nuclei (Mkn 3). We detect, for the first time, the broad-band spectrum of a stellar corona up to 100 keV; for Cas A we report upper limits to the ^44Ti line intensities that are lower than those available to date; for Cyg X-2 we report the evidence of a high energy component; we report a clear detection of a broad Fe K line feature from Cygnus X-1 in soft state and during its transition to hard state; Mkn 3 is one of several Seyfert 2 galaxies detected with BeppoSAX at high energies, for which Compton scattering process is important.

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F. Frontera, D. Dal Fiume, G. Malaguti, L. Nicastro, M. Orlandini, E. Palazzi, E. Pian, F. Favata, A. Santangelo. 1998-02-06. High Energy Properties of X-ray Sources observed with BeppoSAX. https://doi.org/10.1016/s0920-5632(98)00227-8

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