X-ray Synchrotron Radiation in the Forward Shock of Cassiopeia A

Details X-ray Synchrotron Radiation in the Forward Shock of Cassiopeia A X-ray Synchrotron Radiation in the Forward Shock of Cassiopeia A

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.3203b&link_type=abstract

American Astronomical Society, HEAD Meeting #5, #32.03; Bulletin of the American Astronomical Society, Vol. 32, p.1236

Astronomy and Astrophysics

Astronomy

Scientific paper

We present high spatial resolution spectra of the forward shock of Cassiopeia A from a 50,000 s observation obtained by the Advanced CCD Imaging Spectrometer on board the Chandra X-ray Observatory. We systematically compare the ionization conditions of the shocked plasma in different regions along the forward shock. Single-component non-equilibrium ionization models do not provide good fits to the spectra-- possibly indicating the presence of a synchrotron component. We provide an estimate of the synchrotron flux present in the forward shock and discuss alternative models.

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