Mathematics – Metric Geometry
Scientific paper
Oct 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.276..944b&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 276, NO. 3/OCT1, P. 944, 1995
Mathematics
Metric Geometry
2
Scientific paper
. In the early stages of evolution of supernovae, the shock front expands at a significant fraction of the speed of light. Effects due to the finite speed of propagation of the radio emission may therefore be important. We discuss the inclusion of travel-time delays in one particular model for the radio emission from SNR 1987A. we consider a spherically symmetric geometry and a time-dependent treatment of diffusive electron acceleration at the expanding shock. Analytic expressions for the flux density are presented, and we show that propagation delays are important at the initial switch-on of the emission, but not for its long-term evolution.
Ball Lewis
Campbell-Wilson Duncan
Staveley--Smith Lister
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