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Ionization and Velocity Structure in the Supernova Remnant E0102-72 | | K.A. Flanagan
; C.R. Canizares
; D.S. Davis
; D. Dewey
; J.C. Houck
; T.H. Markert
; M.L. Schattenburg
; | | Date: |
3 May 2001 | | Subject: | astro-ph | | 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. | | Source: | arXiv, astro-ph/0105058 | | Services: | Forum | Review | PDF | Favorites | |
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