ASASSN-15no: the Supernova that plays hide-and-seek
ASASSN-15no: the Supernova that plays hide-and-seek
We report the results of our follow-up campaign of the peculiar supernova ASASSN-15no, based on optical data covering ~300 days of its evolution. Initially the spectra show a pure blackbody continuum. After few days, the HeI 5876 A transition appears with a P-Cygni profile and an expansion velocity of about …