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F. D. Seward (Smithsonian Astrophysical Observatory), Y.-H. Chu, J. R. Dickel, R. M. Williams (University of Illinois), C. Smith (CTIO)
A Chandra observation has defined the extent of a supernova remnant in the LMC HII region N9. There is good agreement between X-ray and OIII and SII morphology. In X-rays, the central region is bright and emission from the outer shell is weak. The X-ray spectrum is soft and indicates enhanced Fe abundance in the central region which favors a Type IA SN origin.
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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.