Discovery and Observations of the Unusually Luminous Type-Defying   II-P/II-L Supernova ASASSN-13co
  We present photometric and spectroscopic observations of ASASSN-13co, an unusually luminous Type II supernova and the first core-collapse supernova discovered by the All-Sky Automated Survey for SuperNovae (ASAS-SN). First detection of the supernova was on UT 2013 August 29 and the data presented span roughly 3.5 months after discovery. We use the recently developed model from Pejcha & Prieto (2015) to model the multi-band light curves of ASASSN-13co and derive the bolometric luminosity curve. We compare ASASSN-13co to other Type II supernovae to show that it was unusually luminous for a Type II supernova and that it exhibited an atypical light curve shape that does not cleanly match that of either a standard Type II-L or Type II-P supernova. 
T. W.-S. Holoien, J. L. Prieto, O. Pejcha, K. Z. Stanek, C. S.   Kochanek, B. J. Shappee, D. Grupe, N. Morrell, J. R. Thorst...
astro-ph.HE