NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-20 T07:40:32 PDT
Help | Comment | NED Home

For refcode 1992SvA....36...63C:
Retrieve 10 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Institute of Physics. 1992SvA....36...63C Indications of a superwind in the light curves of type II supernovae N. N. Chugai Astronomy Institute, Russian Academy of Sciences (Submitted March 7, 1991) Astron. Zh. 69, 125-137 (January-February 1992) A simple model is suggested for the bolometric light curve of a type II supernova at a late stage (t ~> 100 days), under the condition that the main energy source is the shock interaction of the supernova shell with the wind of the presupernova. Energy is deposited in the shell by its absorption of x rays from the outer and inner shocks. It is shown that the anomalous light curves of SN 1987F and SN 1988Z at t ~> 100 days (with a slow light decrease and a high luminosity) can be duplicated in the model with a wind density parameter w = M/u~2.10^17^ g/cm. For SN 1978C with w = 8.10^15^ g/cm (known from radio data), the shock may make a pronounced contribution to the bolometric light curve at t ~> 300 days. The high luminosity of SN 1980K at t~9 yr is consistent with the model of shock interaction of shell and wind with the wind density parameter w = 2.10^15^ g/cm obtained from radio data. The light echo effect in scattering from wind dust is considered in a simple model. It is shown that the contribution of the light echo to the bolometric light curve of SN 1979C at t ~> 200 days may exceed the contribution of radioactivity and of the shock in the wind.
Retrieve 10 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home