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PUSHing Core-collapse Supernovae to Explosions in Spherical Symmetry. III. Nucleosynthesis Yields

Journal Article · · The Astrophysical Journal (Online)
 [1];  [2];  [3];  [4];  [5];  [4];  [6]
  1. North Carolina State Univ., Raleigh, NC (United States); DOE/OSTI
  2. North Carolina State Univ., Raleigh, NC (United States); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany)
  3. North Carolina State Univ., Raleigh, NC (United States)
  4. Univ. of Basel (Switzerland)
  5. Istituto Nazionale di Fisica Nucleare (INFN), Parma (Italy); Univ. degli Studi di Milano (Italy); Univ. of Parma (Italy)
  6. GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Univ. of Basel (Switzerland)
In a previously presented proof-of-principle study, we established a parameterized spherically symmetric explosion method (PUSH) that can reproduce many features of core-collapse supernovae (CCSNe) for a wide range of preexplosion models. The method is based on the neutrino-driven mechanism and follows collapse, bounce, and explosion. There are two crucial aspects of our model for nucleosynthesis predictions. First, the mass cut and explosion energy emerge simultaneously from the simulation (determining, for each stellar model, the amount of Fe-group ejecta). Second, the interactions between neutrinos and matter are included consistently (setting the electron fraction of the innermost ejecta). In the present paper, we use the successful explosion models from Ebinger et al. that include two sets of pre-explosion models at solar metallicity, with combined masses between 10.8 and 120 M. We perform systematic nucleosynthesis studies and predict detailed isotopic yields. The resulting 56Ni ejecta are in overall agreement with observationally derived values from normal CCSNe. The Fe-group yields are also in agreement with derived abundances for metal-poor star HD 84937. We also present a comparison of our results with observational trends in alpha element to iron ratios.
Research Organization:
North Carolina State Univ., Raleigh, NC (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0010263
OSTI ID:
1611371
Journal Information:
The Astrophysical Journal (Online), Journal Name: The Astrophysical Journal (Online) Journal Issue: 1 Vol. 870; ISSN 1538-4357
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Using failed supernovae to constrain the Galactic r-process element production journal May 2019
The Type II superluminous SN 2008es at late times: near-infrared excess and circumstellar interaction journal July 2019
Identical or fraternal twins? The chemical homogeneity of wide binaries from Gaia DR2 journal January 2020
The Pristine survey – IX. CFHT ESPaDOnS spectroscopic analysis of 115 bright metal-poor candidate stars journal December 2019
The ν -process with Fully Time-dependent Supernova Neutrino Emission Spectra journal May 2019
Nucleosynthesis Constraints on the Energy Growth Timescale of a Core-collapse Supernova Explosion journal November 2019
PUSHing Core-collapse Supernovae to Explosions in Spherical Symmetry. IV. Explodability, Remnant Properties, and Nucleosynthesis Yields of Low-metallicity Stars journal January 2020
Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A journal February 2020
Asymmetries of Heavy Elements in the Young Supernova Remnant Cassiopeia A text January 2019
Using failed supernovae to constrain the Galactic r-process element production text January 2019
Identical or fraternal twins? : The chemical homogeneity of wide binaries from Gaia DR2 text January 2019
Nucleosynthesis Constraints on the Energy Growth Timescale of a Core-Collapse Supernova Explosion conference March 2020


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