The 10 Year Radio Light Curves for SN 1979C

October 1991 • 1991ApJ...380..161W

Authors • Weiler, Kurt W. • van Dyk, Schuyler D. • Panagia, Nino • Sramek, Richard A. • Discenna, Jennifer L.

Abstract • We present new observations of the radio supernova SN 1979C made with the VLA at λλ20, 6, and 2 cm from 1985 March through 1990 December, augmenting our previous observations which began only 8 days after optical maximum in 1979 April and extended through 1984 November. We find that the "mini-shell" model of Chevalier still provides the best representation of these more complete light curves at all three wavelengths. Shorter period fluctuations in the observations are real and are probably due to emission efficiency variations caused by structure in the presupernova stellar wind density. We also find evidence for more than 1 M_sun_ lost from the progenitor star in the presupernova stellar wind. This suggests that the star's mass was originally M_ZAMS_~> 13 M_sun_. These observations represent the longest and most complete data set available for the emission from any supernova in any wavelength band.

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=1991ApJ...380..161W
• NED https://ned.ipac.caltech.edu/uri/NED::InRefcode/1991ApJ...380..161W
• GIF http://articles.adsabs.harvard.edu/full/1991ApJ...380..161W
• ARTICLE http://articles.adsabs.harvard.edu/full/1991ApJ...380..161W?defaultprint=YES