AAS 206th Meeting, 29 May - 2 June 2005
Session 51 Supernovae and Supernovae Remnants
Oral, Thursday, 10:00-11:30am, June 2, 2005, 102 C

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[51.05] Chandra HETG Observations of Cas A

J. Lazendic, D. Dewey, C. R. Canizares, J. E. Davis, N. S. Schulz, K. A. Flanagan (MIT)

We present results from the Chandra High Energy Transmission Grating Spectrometer observation of the young supernova remnant Cas A. High resolution X-ray spectra from distinct features/regions reveal dominant emission lines from H- and He-like silicon and sulfur, and weaker lines from magnesium, argon and calcium. We find unambiguous Doppler shifts in these lines of up to 3500 km/s generally consistant with previous studies. We present results from plasma diagnostics of individual lines and discuss plasma conditions as a function of position throughout the remnant.

This work was supported by NASA through the Smithsonian Astrophysical Observatory (SAO) contract SV3-73016 for the Chandra X-Ray Center and Science Instruments.

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Bulletin of the American Astronomical Society, 37 #2
© 2005. The American Astronomical Soceity.