Bolometric light curves and explosion parameters of 38 stripped-envelope core-collapse supernovae
J. D. Lyman,J. D. Lyman,D. Bersier,Phil A. James,Paolo A. Mazzali,John J. Eldridge,Morgan Fraser,Elena Pian,Elena Pian +8 more
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TLDR
In this article, the bolometric light curve of 38 stripped-envelope core-collapse supernovae (SE SNe) is recovered and template light curves provided.Abstract:
Literature data are collated for 38 stripped-envelope core-collapse supernovae (SE SNe; i.e. SNe IIb, Ib, Ic and Ic-BL) that have good light curve coverage in more than one optical band. Using bolometric corrections derived in previous work, the bolometric light curve of each SN is recovered and template bolometric light curves provided. Peak light distributions and decay rates are investigated; SNe subtypes are not cleanly distinguished in this parameter space, although some grouping of types does occur and there is a suggestion of a Phillips-like relation for most SNe Ic-BL. The bolometric light curves are modelled with a simple analytical prescription and compared to results from more detailed modelling. Distributions of the explosion parameters shows the extreme nature of SNe Ic-BL in terms of their 56Ni mass and the kinetic energy, however ejected masses are similar to other subtypes. SNe Ib and Ic have very similar distributions of explosion parameters, indicating a similarity in progenitors. SNe~IIb are the most homogeneous subtype and have the lowest average values for 56Ni mass, ejected mass, and kinetic energy. Ejecta masses for each subtype and SE SNe as a whole are inconsistent with those expected from very massive stars. The majority of the ejecta mass distribution is well described by more moderately massive progenitors in binaries, indicating these are the dominant progenitor channel for SE SNe.read more
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Stripped-envelope core-collapse supernova 56Ni masses - Persistently larger values than supernovae type II
N. Meza,J. P. Anderson +1 more
TL;DR: In this paper, the authors re-estimate the nucleosynthetic yields of 56 Ni for a well-observed and well-defined sample of stripped-envelope SNe (SE-SNe) in a uniform manner.
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LSQ13ddu: a rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures
P. Clark,Kate Maguire,Kate Maguire,Cosimo Inserra,S. J. Prentice,S. J. Prentice,Stephen J. Smartt,Carlos Contreras,Griffin Hossenizadeh,Eric Hsiao,Erkki Kankare,Mansi M. Kasliwal,Peter Nugent,Melissa Shahbandeh,C. Baltay,David Rabinowitz,Iair Arcavi,Chris Ashall,Christopher R. Burns,E. Callis,T. W. Chen,T. R. Diamond,Morgan Fraser,D. Andrew Howell,D. Andrew Howell,Emir Karamehmetoglu,Emir Karamehmetoglu,Rubina Kotak,J. D. Lyman,Nidia Morrell,Mark M. Phillips,Giuliano Pignata,Giuliano Pignata,M. Pursiainen,Jesper Sollerman,Maximilian Stritzinger,Mark Sullivan,D. R. Young +37 more
TL;DR: In this article, the authors describe the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey, which showed the presence of weak and narrow features arising from interaction with circumstellar material.
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The Origin of the Ha-like Structure in Nebular Spectra of Type IIb Supernovae
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