Document Type
Article
Publication Date
11-10-2004
Publication Title
The Astrophysical Journal
Department
Department of Physics and Astronomy
Abstract
We introduce a million second observation of the supernova remnant Cassiopeia A with the Chandra X-Ray Observatory. The bipolar structure of the Si-rich ejecta (northeast jet and southwest counterpart) is clearly evident in the new images, and their chemical similarity is confirmed by their spectra. These are most likely due to jets of ejecta as opposed to cavities in the circumstellar medium, since we can reject simple models for the latter. The properties of these jets and the Fe-rich ejecta will provide clues to the explosion of Cas A.
DOI
10.1086/426186
Original Citation
Una Hwang et al 2004 ApJ 615 L117
Dartmouth Digital Commons Citation
Hwang, Una; Laming, J. Martin; Badenes, Carles; Berendse, Fred; Blondin, John; Cioffi, Denis; DeLaney, Tracey; Dewey, Daniel; and Fesen, Robert, "A Million SecondChandraView of Cassiopeia A" (2004). Dartmouth Scholarship. 2258.
https://digitalcommons.dartmouth.edu/facoa/2258