Moderately-Sized Middle-Aged Supernova Remnants in Magellanic Clouds: AN Unexplored Population

Details Moderately-Sized Middle-Aged Supernova Remnants in Magellanic Clouds: AN Unexplored Population Moderately-Sized Middle-Aged Supernova Remnants in Magellanic Clouds: AN Unexplored Population

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1229b&link_type=abstract

Chandra Proposal ID #04500935

Computer Science

Chandra Proposal Id #04500935

Scientific paper

We propose ACIS observations of three mature Magellanic Cloud supernova remnants, chosen to be most likely in the Sedov evolutionary phase and without strong interaction with inhomogeneous surrounding material. We wish to see whether our striking Cycle 2 finding, based on 3 similar LMC SNRs, of enhanced iron emission is true of a larger sample, and if so, to characterize the ejecta properties. Our previous study demonstrated that we will require high angular resolution to separate different emission components. For the faintest target we propose joint XMM-Newton observations. Such middle-aged remnants form an excellent sample in which to investigate electron heating, ejecta mixing and abundances, and possible cosmic-ray-modified shocks.

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