Assigned ID: 71 ----- Attempting Submission 1 (Tue Feb 21 21:00:12 GMT 2012) ----- The discovery of Super-Luminous Supernovae and other peculiar transient events imposed challenges to our understanding of the processes involved such as the energy input that powers their light curves and the environments in which their progenitors explode. Besides the high peak luminosity, the light curves of these events have a variety of shapes, rise-times and decline rates and a variety of spectral features that indicate of a variety of physical conditions that dominate their luminous output. Some of these events are thought to be associated with violent ejecta-circumstellar matter interaction causing the release of large amounts of shock-deposited energy. A few others are thought to be the manifestations of pair-instability supernovae producing massive amounts of nickel-56. Others may be powered by neutron star magnetic dipole radiation. So far only one-dimensional simulations of these various mechanisms have been presented. Multi-dimensional effects that will take into account mixing processes in the progenitor (convective and rotationally-induced)and the effects of rotation and hydrodynamic instabilities in the explosions are expected to alter the features observed in these events. We propose to perform multi-dimensional (2-D and 3-D) radiation hydrodynamics simulations for a variety of progenitor characteristics, explosion mechanisms, and circumstellar environments (including those deficient in H and He) in order to study those effects and ultimately better constrain the nature of the progenitors, the explosion mechanisms, and the environments of these spectacular cosmic events. HOT STARS 12 Small false 0.0 0.0 false false true false SUPPORTED