The peculiar case of the "double-humped" super-luminous supernova   SN2006oz
  SN2006oz is a super-luminous supernova with a mysterious bright precursor that has resisted explanation in standard models. However, such a precursor has been predicted in the dual-shock quark nova (dsQN) model of super-luminous supernovae -- the precursor is the SN event while the main light curve of the SLSN is powered by the Quark-Nova (QN; explosive transition of the neutron star to a quark star). As the SN is fading, the QN re-energizes the SN ejecta, producing a "double-humped" light curve. In this paper, we show the dsQN model successfully reproduces the observed light curve of SN2006oz. 
Rachid Ouyed and Denis Leahy (Department of Physics and Astronomy,   University of Calgary, Calgary, Alberta, Canada)
astro-ph.HE hep-ph