Precollapse Properties of Superluminous Supernovae and Long Gamma-Ray Burst Progenitor Models

We analyze the properties of 42 rapidly rotating, low-metallicity, quasi-chemically homogeneously evolving stellar models in the mass range between 4 and 45 at the time of core collapse. Such models were proposed as progenitors for both superluminous supernovae (SLSNe) and long-duration gamma-ray bu...

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Bibliographic Details
Published inThe Astrophysical journal Vol. 901; no. 2; pp. 114 - 126
Main Authors Aguilera-Dena, David R., Langer, Norbert, Antoniadis, John, Müller, Bernhard
Format Journal Article
LanguageEnglish
Published Philadelphia The American Astronomical Society 01.10.2020
IOP Publishing
Subjects
Astronomical models
Astrophysical black holes
Astrophysics
Black holes
Circumstellar matter
Collapse
Ejecta
Explosions
Gamma ray bursts
Gamma rays
Homogeneity
Late stellar evolution
Magnetars
Magnetic fields
Metallicity
Neutron star cores
Neutron stars
Nonstandard evolution
Progenitors (astrophysics)
Rotation
Stellar evolution
Stellar evolutionary models
Stellar models
Supernovae
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Summary:We analyze the properties of 42 rapidly rotating, low-metallicity, quasi-chemically homogeneously evolving stellar models in the mass range between 4 and 45 at the time of core collapse. Such models were proposed as progenitors for both superluminous supernovae (SLSNe) and long-duration gamma-ray bursts (lGRBs) and the Type Ic-BL supernovae (SNe) that are associated with them. Our findings suggest that whether these models produce a magnetar-driven SLSN explosion or a near-critically rotating black hole is not a monotonic function of the initial mass. Rather, their explodability varies nonmonotonically depending on the late core evolution, once chemical homogeneity is broken. Using different explodability criteria, we find that our models have a clear preference to produce SLSNe at lower masses and lGRBs at higher masses, but we find several exceptions, expecting lGRBs to form from stars as low as 10 and SLSNe with progenitors as massive as 30 . In general, our models reproduce the predicted angular momenta, ejecta masses, and magnetic field strengths at core collapse inferred for SLSNe and lGRBs and suggest significant interaction with their circumstellar medium, particularly for explosions with low ejecta mass.
Bibliography:AAS24940
High-Energy Phenomena and Fundamental Physics
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/abb138