Fast evolving pair-instability supernova models: evolution, explosion, light curves (MNRAS paper)
As part of a collaboration lead by Alexandra Kozyreva and Raphael Hirschi, I have contributed to the study of pair-instability supernovae (PISNe) models for high-mass stars at relatively high metallicity. According to our stellar evolution calculations, these models do not retain any hydrogen in the outer layers at the point of explosion. Using detailed radiative transfer calculations, we determined synthetic observables for pair-instability supernovae occurring in such stars and found that their light curves are relatively fast evolving. Thus, such events may be suitable candidates to explain some superluminous supernovae. Additionally, an important part of this study was the investigation associated with the light curve modelling. Here, we focussed mainly on the consequences of using different radiative transfer tools, relying on different opacity prescriptions and including the so-called nickel-bubble effect. Our results are summarized in a paper which has just been accepted for publication in MNRAS. A preprint may be found on the arXiv or on the early access system of MNRAS.