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Bolometric light curves and explosion parameters of 38 stripped-envelope core-collapse supernovae

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Lyman, J. D., Bersier, D., James, P. A., Mazzali, P. A., Eldridge, J. J. and Pian, E. (2016) Bolometric light curves and explosion parameters of 38 stripped-envelope core-collapse supernovae. Monthly Notices of the Royal Astronomical Society, 457 (1). pp. 328-350. doi:10.1093/mnras/stv2983

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Official URL: https://doi.org/10.1093/mnras/stv2983

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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 show 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.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Double stars , Supernovae , Light curves
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Wiley
ISSN: 0035-8711
Official Date: 21 March 2016
Dates:
DateEvent
21 March 2016Published
20 January 2016Available
22 December 2015Accepted
Date of first compliant deposit: 14 January 2021
Volume: 457
Number: 1
Page Range: pp. 328-350
DOI: 10.1093/mnras/stv2983
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
Access rights to Published version: Open Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
AST 0907903National Science Foundationhttp://dx.doi.org/10.13039/501100008982
ST/I001719/1[STFC] Science and Technology Facilities Councilhttp://dx.doi.org/10.13039/501100000271
UNSPECIFIEDLeverhulme Trusthttp://dx.doi.org/10.13039/501100000275
320360Seventh Framework Programmehttp://dx.doi.org/10.13039/100011102
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