The BeppoSAX 0.1--10 keV short-on X-ray spectrum of Hercules X-1

Details The BeppoSAX 0.1--10 keV short-on X-ray spectrum of Hercules X-1 The BeppoSAX 0.1--10 keV short-on X-ray spectrum of Hercules X-1

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999head....4.1513o&link_type=abstract

American Astronomical Society, HEAD meeting #4, #15.13; Bulletin of the American Astronomical Society, Vol. 31, p.714

Astronomy and Astrophysics

Astronomy

Scientific paper

We present observations of the 0.1--10 keV spectrum of Her X-1 during a consecutive main-on and short-on observation in June-July 1998, obtained with the LECS and MECS instruments onboard BeppoSAX. We perform a spectral analysis on the phase-resolved spectra and find that the phase difference between the soft (reprocessed) ~ 0.1 keV blackbody component and the hard power-law component does not vary substantially between the main-on and short-on observation. This results is consistent with a model of a precessing accretion disk where the reprocession occurs at (or near) the inner edge of the accretion disk, since the phase difference between these components is expected to be similar half a cycle later in the 35 day phase.

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