Curvas de luz de supernovas superluminosas: modelos hidrodinámicos

Abstract

Superluminous supernovae (SLSNe) have only recently been detected. The physical origins of their extreme luminosity, a factor 10 to 100 times brighter than normal SNe, remains speculative. One popular mechanism invoked to explain SLSNe is that a magnetar is formed by the collapse of a massive star. The magnetar is a strongly-magnetized, rapidly-rotating neutron star that loses rotational energy via magnetic dipole radiation. That energy provides the extra kick and luminosity for the SLSN. We study the effect of the shock wave propagation through the envelope with the spindown of the magnetar as the central engine. First we reproduce the analytic simplified treatment that is popular in the literature and then compare the results from our radiative hydrodynamic code. The magnetar properties can be constrained through fitting of the observed light curve. As an illustration, we apply this method to SN 2011kg.