The Luminous Supernova Remnant in NGC4449: Charting the Future for SN 1987A

Details The Luminous Supernova Remnant in NGC4449: Charting the Future for SN 1987A The Luminous Supernova Remnant in NGC4449: Charting the Future for SN 1987A

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008cxo..prop.2603l&link_type=abstract

Chandra proposal ID #10500639

Computer Science

Scientific paper

The X-ray luminosity and the optical spectrum of the extraordinary young SNR in NGC4449 have changed since it was discovered in 1978. Here we propose to obtain a second-epoch Chandra ACIS S spectrum and contemporaneous optical (3300-7600 Ang) spectra of the SNR. We will compare the X-ray and optical spectra from different epochs and then model them to develop a more complete understanding of how the shock from this 50-100 year old SN is overrunning the circumstellar medium of the progenitor. We will use this to predict its future evolution and to compare this to the expected future of SN 1987A.

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