Chandra Studies of New Galactic Ejecta-Dominated SNRS

Details Chandra Studies of New Galactic Ejecta-Dominated SNRS Chandra Studies of New Galactic Ejecta-Dominated SNRS

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1469h&link_type=abstract

Chandra Proposal ID #05500725

Physics

Chandra Proposal Id #05500725

Scientific paper

A number of small Galactic radio supernova remnants have been detected as spatially extended hard X-ray sources by ASCA. Here we propose for two targets that show strong K-shell line emission from silicon and sulfur, whose interpretation require super-solar elemental abundances. These remnants are bright enough that detailed X-ray spectro-imagery will be possible using ACIS-S, yet they are small enough that they fit within the field of view of chip S3. The principle goal of these observations is to use the observed abundances to identify the origin of the specific burning sites (explosive O- or Si-burning, for example) of the ejecta. Based on studies of Cas A and G292.0+1.8 we expect these ejecta features to be on arcsecond spatial scales and therefore accessible only by Chandra.

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