Ionization and Velocity Structure in the Supernova Remnant E0102-72
Astrophysics
2007-05-23 v1
Abstract
The High Energy Transmission Grating (HETG) Spectrometer aboard the Chandra X-Ray Observatory was used to observe E0102-72, a ~1000 year old, oxygen rich supernova in the Small Magellanic Cloud. The HETG disperses the image of the remnant into a spectrum of images in the light of individual X-ray emission lines. Doppler shifts in the strongest lines of oxygen and neon reveal bulk motions of up to 2000 km/sec with a complex morphology. Comparison of progressive ionization stages of magnesium, neon, oxygen and silicon provide new insights into the mechanism of the `reverse shock' that heats the stellar ejecta.
Cite
@article{arxiv.astro-ph/0105058,
title = {Ionization and Velocity Structure in the Supernova Remnant E0102-72},
author = {K. A. Flanagan and C. R. Canizares and D. S. Davis and D. Dewey and J. C. Houck and T. H. Markert and M. L. Schattenburg},
journal= {arXiv preprint arXiv:astro-ph/0105058},
year = {2007}
}
Comments
8 pages, 9 figures; To appear in the ASP Conference Series for X-ray Astronomy 2000, Palermo Italy, eds. Giacconi, Stella & Serio