Radiation Hydrodynamical Models for Type I Superluminous Supernovae: Constraints on Progenitors and Explosion Mechanisms

TOLSTOV; BERSTEN MELINA; NOMOTO; BLINIKOV; SOROKINA

Auckland

Congreso; The Lives and Death-Throes of Massive Stars; 2016

The physical origin of Type-I (hydrogen-less) superluminous supernovae (SLSNe-I), whoseluminosities are 10 to 500 times higher than normal core-collapse supernovae, remains still un-known. Thanks to their brightness, SLSNe-I would be useful probes of distant Universe. Forthe power source of the light curves of SLSNe-I, radioactive-decays, magnetars, and circum-stellar interactions have been proposed, although no definitive conclusions have been reachedyet. Since most of light curve studies have been based on simplified semi-analytic models, wehave constructed multi-color light curve models by means of detailed radiation hydrodynamicalcalculations for various mass of stars including very massive ones and large amount of mass loss.We compare the rising time, peak luminosity, width, and decline rate of the model light curveswith observations of SLSNe-I and obtain constraints on their progenitors and explosion mecha-nisms. We particularly pay attention to the recently reported double peaks of the light curves.We discuss how to discriminate three models, relevant models parameters, their evolutionaryorigins, and implications for the early evolution of the Universe.