Iron line emission from a high temperature plasma in CAS A

Details Iron line emission from a high temperature plasma in CAS A Iron line emission from a high temperature plasma in CAS A

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976stin...7618008p&link_type=abstract

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Computer Science

Cassiopeia A, High Temperature Plasmas, Iron, Line Spectra, X Ray Spectra, Oso, Proportional Counters

Scientific paper

The X-ray spectrum of Cassiopeia A was observed for several days by the proportional counter experiment on board OSO-8. The high energy ( 5 keV) data are fit well by a thermal spectrum. A narrow iron line which is predicted by the thermal model is also observed. The low energy (2-5 keV) data show an excess over the high temperature component which is consistent with the presence of an additional low temperature thermal component. Iron abundance in the source relative to normal cosmic abundance is discussed, as in the relation of this observation to shock wave and multi-component thermal models for supernova remnants.

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