Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fast evolving pair-instability supernova models: evolution, explosion,
  light curves   With an increasing number of superluminous supernovae (SLSNe) discovered the
question of their origin remains open and causes heated debates in the
supernova community. Currently, there are three proposed mechanisms for SLSNe:
(1) pair-instability supernovae (PISN), (2) magnetar-driven supernovae, and (3)
models in which the supernova ejecta interacts with a circumstellar material
ejected before the explosion. Based on current observations of SLSNe, the PISN
origin has been disfavoured for a number of reasons. Many PISN models provide
overly broad light curves and too reddened spectra, because of massive ejecta
and a high amount of nickel. In the current study we re-examine PISN properties
using progenitor models computed with the GENEC code. We calculate supernova
explosions with FLASH and light curve evolution with the radiation
hydrodynamics code STELLA. We find that high-mass models (200 and 250 solar
masses) at relatively high metallicity (Z=0.001) do not retain hydrogen in the
outer layers and produce relatively fast evolving PISNe Type I and might be
suitable to explain some SLSNe. We also investigate uncertainties in light
curve modelling due to codes, opacities, the nickel-bubble effect and
progenitor structure and composition.

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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: ao-sci
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The categories of this paper are: solv-int
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The categories of this paper are: cs
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ex
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The categories of this paper are: eess