Origin of high-velocity ejecta and early red excess emission in the infant Type Ia supernova 2021aefx

Yuan Qi Ni, Dae-Sik Moon, Maria R. Drout +5

SN~2021aefx is a normal Type Ia Supernova (SN) with red excess emission over the first $\sim$ 2 days. We present detailed analysis of this SN using our high-cadence KMTNet multi-ba…