Explosions inside Ejecta and Most Luminous Supernovae
S.I.Blinnikov (ITEP, Moscow, RESCEU, Tokyo; currently at IPMU,, Tokyo)
TL;DR
This paper explains the luminosity of supernova SN2006gy and similar SNIIn events through a model involving radiative shocks in dense circumstellar material from prior explosions.
Contribution
It proposes a unified explanation for luminous supernovae involving multiple explosions and shock interactions, addressing theoretical and observational challenges.
Findings
Radiative shocks in dense circumstellar envelopes produce high luminosity.
Multiple explosions contribute to the observed brightness of SNIIn supernovae.
The model accounts for the peculiar features of SN2006gy.
Abstract
The extremely luminous supernova SN2006gy is explained in the same way as other SNIIn events: light is produced by a radiative shock propagating in a dense circumstellar envelope formed by a previous weak explosion. The problems in the theory and observations of multiple-explosion SNe IIn are briefly reviewed.
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