Yuan, Fang; Seitenzahl, Ivo; Childress, Michael; Ruiter, Ashley; Schmidt, Brian; Tucker , Bradley; Pastorello, A.; Benetti, Stefano; Margheim, Steve; Ochner, P.; Tomasella, L
We present optical and near-infrared photometric and spectroscopic observations of SN 2013ej, in galaxy M74, from 1 to 450 d after the explosion. SN 2013ej is a hydrogen-rich supernova, classified as a Type IIL due to its relatively fast decline following the initial peak. It has a relatively high peak luminosity (absolute magnitude MV = -17.6) but a small 56Ni production of ~0.023 M⊙. Its photospheric evolution is similar to other Type II SNe, with shallow absorption in the Hα profile typical...[Show more]
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