Recent advances in VLBI observations of supernovae

Details Recent advances in VLBI observations of supernovae Recent advances in VLBI observations of supernovae

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..937..321m&link_type=abstract

SUPERNOVA 1987A: 20 YEARS AFTER: Supernovae and Gamma-Ray Bursters. AIP Conference Proceedings, Volume 937, pp. 321-330 (2007).

Computer Science

Supernovae, Radio, Microwave, Supernova Remnants

Scientific paper

We review advances in VLBI observations of radio supernovae not considered in earlier reviews [1] [2] [3], in particular of supernovae SN 1979C, SN 1986J, SN 1993J, and SN 2004et. SN 1979C is a supernova in practically free expansion. SN 1986J displays in its center an inverted spectrum compact source likely associated to the yet undetected pulsar or rest of star collapse. SN 1993J is a supernova in self-similar expansion. However, it shows an enhanced deceleration at 6 cm due to the characteristics of the radio emission in the shell. SN 2004et's asymmetric structure is interpreted as that of an expanding shell with 2 hot spots. For SN 2004et, the synchrotron self-absorption seems to be negligible compared to circumstellar free-free absorption.

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