Optical depth effects in the X-ray emission from supernova remnants

Details Optical depth effects in the X-ray emission from supernova remnants Optical depth effects in the X-ray emission from supernova remnants

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26a...302l..13k&link_type=abstract

Astronomy and Astrophysics, v.302, p.L13

Astronomy and Astrophysics

Astrophysics

20

Atomic Processes, Scattering, Ism: Supernova Remnants, X-Rays: Interstellar

Scientific paper

We study the effects of resonance scattering in the X-ray spectra of supernova remnants. We show the importance of these effects using the ASCA X-ray spectrum of Cas A as an example. In particular the abundances derived in the common optically thin approximation can be off by a factor of 2 in the case of oxygen. Also in other supernova remnants similar effects are expected to be important. With future high-resolution missions like AXAF and XMM it is necessary to incorporate resonance scattering in the spectral analysis tools.

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