Circumstellar Interaction in Young Radio Supernovae

Details Circumstellar Interaction in Young Radio Supernovae Circumstellar Interaction in Young Radio Supernovae

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004assl..315..181p&link_type=abstract

How Does the Galaxy Work? A Galactic Tertulia with Don Cox and Ron Reynolds. Edited by Emilio J. Alfaro, Instituto de Astrofica

Astronomy and Astrophysics

Astrophysics

Scientific paper

We give an overview of circumstellar interaction in young radio supernovae, as seen through the eyes of Very-long-baseline interferometry (VLBI) observations. The resolution attained by such observations (≲ 1 mas) is a powerful tool to probe the interaction that takes place after a supernova goes off. The direct imaging of supernovae has permitted, among other things, to estimate the deceleration of their expansion, and to obtain information on the ejecta and circumstellar density profiles. Unfortunately, only a handful of radio supernovae are close and bright enough as to permit their study with VLBI. We present here results from our high-resolution observations of the nearby radio supernovae SN 1979C, SN 1986J, SN 1993J, and SN 2001gd.

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