Physics – Plasma Physics
Scientific paper
Nov 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aps..dpp4ifa01c&link_type=abstract
American Physical Society, Division of Plasma Physics Meeting, November 10-15, 1996, abstract #4IFA.01
Physics
Plasma Physics
Scientific paper
The proximity of the supernova SN 1987A gives us an unprecedented opportunity to observe the development of the supernova shock wave as it interacts with mass lost prior to the supernova explosion. The denser surrounding gas was illuminated by the supernova radiation at the time of shock breakout from the star. Recent radio and X-ray observations give evidence for the shock interaction with an ionized region created in the swept up dense wind from a previous evolutionary phase. The ionizing radiation from the progenitor star probably played an important role in shaping the supernova environment. Although the shock waves are not currently radiatively cooling, which would be accompanied by bright optical/ultraviolet emission, there are shock diagnostics. In the case of another nearby supernova, SN 1993J, dense gas was present close to the explosion, giving rise to a cooling shock wave and radiative phenomena at an early phase.
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