Testing Shock Physics Through Flux Variability in Cas A

Details Testing Shock Physics Through Flux Variability in Cas A Testing Shock Physics Through Flux Variability in Cas A

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2750p&link_type=abstract

Chandra proposal ID #11500803

Computer Science

Scientific paper

Cassiopeia A has recently joined SN 1987A and RXJ 1713-3946 as one of only a handful of SNRs to exhibit temporal variations in their thermal and nonthermal emission. We propose for three 50 ks observations of Cas A spaced in 6 month intervals. These new observations are designed to test for emission variability on short timescales. Consequently, they will discriminate between several models for rapid variability in the emission from nonthermal filaments. Furthermore, with these new observations, we will identify freshly reverse-shock heated ejecta, thus allowing us to measure the dynamics and chemical composition of the most pristine supernova debris.

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