Weak Mass Loss from the Red Supergiant Progenitor of the Type II SN 2021yja

Griffin Hosseinzadeh, Charles D. Kilpatrick, Yize Dong +56

We present high-cadence optical, ultraviolet (UV), and near-infrared data of the nearby ($D\approx 23$ Mpc) Type II supernova (SN) 2021yja. Many Type II SNe show signs of interactio…