Optical, Ultraviolet, and Infrared Observations of SN 1993J

Details Optical, Ultraviolet, and Infrared Observations of SN 1993J Optical, Ultraviolet, and Infrared Observations of SN 1993J

2003-10-08

arxiv.org/abs/astro-ph/0310228v1

Astronomy and Astrophysics

Astrophysics

9 pages, 1 figure. To appear in proceedings of IAU Colloquium 192, Supernovae: 10 Years of 1993J Valencia, Spain 22-26 April 2

Scientific paper

We review the existing set of optical/UV/IR observations of Supernova 1993J, concentrating heavily on optical data because these are by far the most plentiful. Some results from theoretical modeling of the observations are also discussed. SN 1993J has provided the best observational evidence for the transformation of a SN from one spectral type to another, thereby providing a link between Type II and Type Ib supernovae (SNe). This has strengthened the argument that SNe Ib (and, by extension, SNe Ic) are core-collapse events. SN 1993J has remained relatively bright for 10 years; its late-time emission comes from the collision of supernova ejecta with circumstellar gas that was released by the progenitor prior to the explosion. The circumstellar material shows strong evidence of CNO processing.

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