The story of SN 2021aatd -- a peculiar 1987A-like supernova with an early-phase luminosity excess

T. Szalai, R. Könyves-Tóth, A. P. Nagy +20

There is a growing number of peculiar events that cannot be assigned to any of the main supernova (SN) classes. SN 1987A and a handful of similar objects, thought to be explosive o…