Asphericity, Interaction, and Dust in the Type II-P/II-L Supernova 2013ej in Messier 74

Jon C. Mauerhan, Schuyler D. Van Dyk, Joel Johansson +6

SN 2013ej is a well-studied core-collapse supernova (SN) that stemmed from a directly identified red supergiant (RSG) progenitor in galaxy M74. The source exhibits signs of substan…