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Title: Pair-instability Supernova Simulations: Progenitor Evolution, Explosion, and Light Curves

Journal Article · · The Astrophysical Journal (Online)
ORCiD logo [1]; ORCiD logo [2];  [3]; ORCiD logo [1]; ORCiD logo [4]
  1. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  2. Tel Aviv Univ., Tel Aviv (Israel). The Raymond and Beverly Slacker School of Physics and Astronomy
  3. Keele Univ., Keele, Staffordshire (United Kingdom). School of Chemical and Physical Sciences, Astrophysics group; Univ. of Tokyo, Kashiwa, Chiba (Japan). Univ. of Tokyo Inst. for Advanced Study, Kavli Inst. for the Physics and Mathematics of the Universe (WPI)
  4. Univ. of Malaya, Kuala Lumpur (Malaysia). Dept. of Physics, Faculty of Science

Recently, the viability of the pair-instability supernova (PISN) scenario for explaining superluminous supernovae has all but disappeared except for a few slowly-evolving examples. However, PISNe are not predicted to be superluminous throughout the bulk of their mass range. In fact, it is more likely that the first PISN we see (if we have not seen one already) will not be superluminous. Here, we present hydrodynamic simulations of PISNe for four stellar models with unique envelope properties spanning the PISN mass range. In addition, we compute synthetic light curves (LCs) for comparison with current and future observations. We also investigate, in the context of our most massive model, the prospect of mixing in the supernova ejecta, alleviating discrepancies between current PISN models and the remaining superluminous candidate events. To this end, we present the first published 3D hydrodynamic simulations of PISNe. After achieving convergence between 1D, 2D, and 3D simulations, we examine mixing in the supernova ejecta and its affect on the bolometric LC. We observe slight deviations from spherical symmetry, which increase with the number of dimensions. We find no significant effects on the bolometric LC; however, we conclude that mixing between the silicon and oxygen rich layers caused by the Rayleigh–Taylor instability may affect spectra.

Research Organization:
North Carolina State University, Raleigh, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010263
OSTI ID:
1537193
Journal Information:
The Astrophysical Journal (Online), Vol. 846, Issue 2; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 25 works
Citation information provided by
Web of Science

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Cited By (13)

Superluminous Supernovae journal March 2018
Massive star evolution: feedbacks in low- Z environment journal August 2018
OGLE14-073 – a promising pair-instability supernova candidate journal May 2018
Detecting strongly lensed supernovae at z ∼ 5–7 with LSST journal November 2019
Stellar Yields of Rotating First Stars. II. Pair-instability Supernovae and Comparison with Observations journal April 2018
Measurement Accuracy of Inspiraling Eccentric Neutron Star and Black Hole Binaries Using Gravitational Waves journal January 2019
A Systematic Study of Superluminous Supernova Light-curve Models Using Clustering journal March 2019
Synthetic Spectra of Pair-instability Supernovae in 3D journal April 2019
Stellar Yields of Rotating First Stars. II. Pair Instability Supernovae and Comparison with Observations text January 2018
OGLE14-073 - a promising pair-instability supernova candidate text January 2018
A Systematic Study Of Superluminous Supernova Lightcurve Models Using Clustering text January 2019
Massive stars evolution: feedbacks in low-Z environment text January 2019
Superluminous supernovae text January 2018

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