Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19912616v&link_type=abstract
American Astronomical Society, 199th AAS Meeting, #126.16; Bulletin of the American Astronomical Society, Vol. 33, p.1491
Astronomy and Astrophysics
Astrophysics
Scientific paper
We apply a recently developed model for the hard X-ray (up to 100 keV) continuum emission from the supernova remnant Cas A to a deep observation with the BeppoSAX PDS instrument. Our aim is to determine more realistic limits on the fluxes of 44Sc line emission (44Sc is a decay product of 44Ti, produced in alpha-rich freeze out during the explosion), and to exploit the diagnostic potential of the continuum itself in terms of the velocities of secondary shocks propagating within the Cas A shell and the density contrasts that cause them. This work is supported by the NASA Chandra Postdoctoral Fellowship Award PF0-10011 issued by the Chandra X-Ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of NASA under contract NAS8-39073, and by basic research funds of the Office of Naval Research.
Laming Martin J.
Vink Jacco
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