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
Citations
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The contribution from stars stripped in binaries to cosmic reionization of hydrogen and helium
TL;DR: In this article, the authors investigated the contribution of stars stripped in binary systems to cosmic reionization of hydrogen and found that stripped stars contributed tens of percent of the photons that caused hydrogen ionization.
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SN 2020bvc: A Broad-line Type Ic Supernova with a Double-peaked Optical Light Curve and a Luminous X-Ray and Radio Counterpart
Anna Y. Q. Ho,Shrinivas R. Kulkarni,Daniel A. Perley,S. Bradley Cenko,Alessandra Corsi,Steve Schulze,Ragnhild Lunnan,Jesper Sollerman,Avishay Gal-Yam,Shreya Anand,Cristina Barbarino,Eric C. Bellm,Rachel Bruch,Eric Burns,Kaushik De,Richard Dekany,Alexandre Delacroix,Dmitry A. Duev,D. D. Frederiks,Christoffer Fremling,Daniel A. Goldstein,V. Zach Golkhou,Matthew J. Graham,David Hale,Mansi M. Kasliwal,T. Kupfer,Russ R. Laher,Julia Martikainen,Frank J. Masci,James D. Neill,A. Ridnaia,Ben Rusholme,V. G. Savchenko,David L. Shupe,Maayane T. Soumagnac,Nora L. Strotjohann,Dmitry S. Svinkin,Kirsty Taggart,Leonardo Tartaglia,Lin Yan,Jeffry Zolkower +40 more
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10.4 m GTC observations of the nearby VHE-detected GRB 190829A/SN 2019oyw
Y. D. Hu,Y. D. Hu,A. J. Castro-Tirado,A. J. Castro-Tirado,Amit Kumar,Amit Kumar,Rahul Gupta,Rahul Gupta,A. F. Valeev,Shashi B. Pandey,David Alexander Kann,A. Castellon,I. Agudo,A. Aryan,A. Aryan,M. D. Caballero-Garcia,S. Guziy,Antonio Martin-Carrillo,S. R. Oates,Elena Pian,R. Sanchez-Ramirez,V. V. Sokolov,Bin-Bin Zhang +22 more
TL;DR: In this paper, the 10.4 m Gran Telescopio Canarias (GTC) observations of the afterglow of GRB 190829A and its underlying supernova were used to understand the emission mechanisms and possible progenitor.
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The luminous late-time emission of the type-Ic supernova iPTF15dtg – evidence for powering from a magnetar?
Francesco Taddia,Jesper Sollerman,Christoffer Fremling,Emir Karamehmetoglu,Cristina Barbarino,Ragnhild Lunnan,Stuart West,Avishay Gal-Yam +7 more
TL;DR: In this article, the authors studied the late-time light curve of iPTF15dtg, which turned out to be extraordinarily luminous for a stripped-envelope (SE) SN, and investigated possible powering mechanisms.
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Supernovae Ib and Ic from the explosion of helium stars
TL;DR: In this article, the authors follow a heuristic approach by examining the fate of helium stars in the mass range from 4 to 12 M⊙, which presumably form in interacting binaries.
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