High Resolution Line Spectroscopy of Three Young Supernova Remnants in the Large Magellanic Cloud

Details High Resolution Line Spectroscopy of Three Young Supernova Remnants in the Large Magellanic Cloud High Resolution Line Spectroscopy of Three Young Supernova Remnants in the Large Magellanic Cloud

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..168k&link_type=abstract

Chandra Proposal ID #01500850

Physics

Chandra Proposal Id #01500850

Scientific paper

We propose to observe three young type Ia supernova remnants in the Large Magellanic Cloud--N103B, 0519-69.0, and 0509-67.5--with the HETGS. Previous observations have found these remnants to be in nonequilibrium ionization(NEI). Our goal is to determine the level of ionization nonequilibrium through detailed line spectroscopy of the 0.5-2.0 keV band, which is rich in lines of K shell Ne, Mg, and Si, and L shell Fe, and contains powerful diagnostics to constrain NEI parameters. The HEG is required to resolve these features. To maximize the count rate, we offset point to place the energy band of interest on the efficient back-illuminated chip S1. The sources' moderate spatial extent (10-15'') permits the offset without further degradation of the inherent resolution.

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