Computer Science
Scientific paper
Sep 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001tysc.confe..85k&link_type=abstract
Two Years of Science with Chandra, Abstracts from the Symposium held in Washington, DC, 5-7 September, 2001, meeting abstract.
Computer Science
Supernovae, Supernova Remnants And Isolated Neutron Stars
Scientific paper
Sites of massive star formation are thought to shape their surrounding interstellar medium. Through massive stellar winds produced by the most massive stars, as well as through subsequent supernova explosions. According to the standard picture, these low volume density cavities are filled with coronal gas. Depending on their size, they are classified as bubbles, shells or super-shells. Using ROSAT PSPC data we claimed the detection of X-ray emission originating from a supergiant HI shell within the nearby (3.2 Mpc) dwarf galaxy IC 2574. The angular extent as well as the faintness of the detected X-ray signal did not allow unique clues on the origin of the X-ray emission. A follow-up deep Chandra observation disclosed that in the very center of the supergiant HI shell a point-like source is located. We present a detailed comparison of the ROSAT and Chandra data and comment on the difference in interpretation.
Kerp Jürgen
Walter Fabian
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