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Title: NuGrid stellar data set – II. Stellar yields from H to Bi for stellar models with MZAMS = 1–25 M⊙ and Z = 0.0001–0.02

Abstract

We provide here a significant extension of the NuGrid Set 1 models in mass coverage and towards lower metallicity, adopting the same physics assumptions. The combined data set now includes the initial masses M ZAMS/M = 1, 1.65, 2, 3, 4, 5, 6, 7, 12, 15, 20, 25 for Z = 0.02, 0.01, 0.006, 0.001, 0.0001 with α-enhanced composition for the lowest three metallicities. These models are computed with the MESA stellar evolution code and are evolved up to the AGB, the white dwarf stage, or until core collapse. The nucleosynthesis was calculated for all isotopes in post-processing with the NuGrid MPPNP code. Explosive nucleosynthesis is based on semi-analytic 1D shock models. Metallicity-dependent mass-loss, convective boundary mixing in low- and intermediate-mass models and H and He core burning massive star models are included. Convective O-C shell mergers in some stellar models lead to the strong production of odd-Z elements P, Cl, K, and Sc. In AGB models with hot dredge-up, the convective boundary mixing efficiency is reduced to accommodate for its energetic feedback. In both low-mass and massive star models at the lowest metallicity, H-ingestion events are observed and lead to i-process nucleosynthesis and substantial 15N production. Finally, completemore » yield data tables, derived data products and online analytic data access are provided.« less

Authors:
 [1]; ORCiD logo [2];  [3];  [4];  [5];  [6]
  1. Univ. of Victoria, BC (Canada). Dept. of Physics & Astronomy; Keele Univ. (United Kingdom); Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States); Michigan State Univ., East Lansing, MI (United States)
  2. Univ. of Victoria, BC (Canada). Dept. of Physics & Astronomy; Joint Inst. for Nuclear Astrophysics (JINA), East Lansing, MI (United States); Michigan State Univ., East Lansing, MI (United States)
  3. Heidelberg Inst. for Theoretical Studies, Heidelberg (Germany); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of Hull, Hull (United Kingdom). E. A. Milne Centre for Astrophysics, Dept. of Physics & Mathematics
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Keele Univ. (United Kingdom)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1492606
Report Number(s):
LA-UR-17-25747
Journal ID: ISSN 0035-8711
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Monthly Notices of the Royal Astronomical Society
Additional Journal Information:
Journal Volume: 480; Journal Issue: 1; Journal ID: ISSN 0035-8711
Publisher:
Royal Astronomical Society
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; stars: abundances — evolution — interiors

Citation Formats

Ritter, C., Herwig, F., Jones, S., Pignatari, M., Fryer, C., and Hirschi, R. NuGrid stellar data set – II. Stellar yields from H to Bi for stellar models with MZAMS = 1–25 M⊙ and Z = 0.0001–0.02. United States: N. p., 2018. Web. doi:10.1093/mnras/sty1729.
Ritter, C., Herwig, F., Jones, S., Pignatari, M., Fryer, C., & Hirschi, R. NuGrid stellar data set – II. Stellar yields from H to Bi for stellar models with MZAMS = 1–25 M⊙ and Z = 0.0001–0.02. United States. doi:10.1093/mnras/sty1729.
Ritter, C., Herwig, F., Jones, S., Pignatari, M., Fryer, C., and Hirschi, R. Fri . "NuGrid stellar data set – II. Stellar yields from H to Bi for stellar models with MZAMS = 1–25 M⊙ and Z = 0.0001–0.02". United States. doi:10.1093/mnras/sty1729. https://www.osti.gov/servlets/purl/1492606.
@article{osti_1492606,
title = {NuGrid stellar data set – II. Stellar yields from H to Bi for stellar models with MZAMS = 1–25 M⊙ and Z = 0.0001–0.02},
author = {Ritter, C. and Herwig, F. and Jones, S. and Pignatari, M. and Fryer, C. and Hirschi, R.},
abstractNote = {We provide here a significant extension of the NuGrid Set 1 models in mass coverage and towards lower metallicity, adopting the same physics assumptions. The combined data set now includes the initial masses MZAMS/M⊙ = 1, 1.65, 2, 3, 4, 5, 6, 7, 12, 15, 20, 25 for Z = 0.02, 0.01, 0.006, 0.001, 0.0001 with α-enhanced composition for the lowest three metallicities. These models are computed with the MESA stellar evolution code and are evolved up to the AGB, the white dwarf stage, or until core collapse. The nucleosynthesis was calculated for all isotopes in post-processing with the NuGrid MPPNP code. Explosive nucleosynthesis is based on semi-analytic 1D shock models. Metallicity-dependent mass-loss, convective boundary mixing in low- and intermediate-mass models and H and He core burning massive star models are included. Convective O-C shell mergers in some stellar models lead to the strong production of odd-Z elements P, Cl, K, and Sc. In AGB models with hot dredge-up, the convective boundary mixing efficiency is reduced to accommodate for its energetic feedback. In both low-mass and massive star models at the lowest metallicity, H-ingestion events are observed and lead to i-process nucleosynthesis and substantial 15N production. Finally, complete yield data tables, derived data products and online analytic data access are provided.},
doi = {10.1093/mnras/sty1729},
journal = {Monthly Notices of the Royal Astronomical Society},
number = 1,
volume = 480,
place = {United States},
year = {2018},
month = {6}
}

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