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27 April 2024

» arxiv » 1411.3322

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Discovery and Observations of the Unusually Bright Type-Defying II-P/II-L Supernova ASASSN-13co
T. W.-S. Holoien ; J. L. Prieto ; O. Pejcha ; K. Z. Stanek ; C. S. Kochanek ; B. J. Shappee ; D. Grupe ; N. Morrell ; J. R. Thorstensen ; U. Basu ; J. F. Beacom ; D. Bersier ; J. Brimacombe ; A. B. Davis ; G. Pojmanski ; D. M. Szczygiel ;
Date:	12 Nov 2014
Abstract:	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 (2014) 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 a unique event that was not only unusually bright for a Type II supernova but also exhibited an atypical light curve shape that does not cleanly match that of either a standard Type II-L or Type II-P supernova.
Source:	arXiv, 1411.3322
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