中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 云南天文台
  3. 中国科学院云南天文台
  4. 大样本恒星演化研究组
Nucleosynthesis in the Innermost Ejecta of Magnetorotational Supernova Explosions in Three Dimensions

文献类型：期刊论文

作者Cha S(查帅)4,5,6; Müller, Bernhard3; Powell, Jade1,2
刊名ASTROPHYSICAL JOURNAL
出版日期2024-07-01
卷号969期号:2
ISSN号0004-637X
DOI10.3847/1538-4357/ad4ae7
产权排序第1完成单位
文献子类Article
英文摘要Core-collapse supernova (CCSN) explosions powered by rotation and magnetic fields present an interesting astrophysical site for nucleosynthesis that potentially contributes to the production of r-process elements. Here we present yields of the innermost ejecta in 3D magnetorotational CCSN models simulated using the CoCoNuT-FMT code. Strong magnetic fields tap the rotational energy of the proto-neutron star and lead to earlier and more energetic (similar to 3 x 1051 erg) explosions than typical neutrino-driven CCSNe. Compared to a reference nonmagnetic model, the ejecta in the magnetorotational models have much more neutron-rich components with Y e down to similar to 0.25. Our post-processing calculations with the reaction network SkyNet show significant production of weak r-process elements up to mass number similar to 130. We find negligible differences in the synthesis of heavy elements between two magnetorotational models with different initial field strengths of 1010 and 1012 G, in accord with their similar explosion dynamics. The magnetorotational models produce about similar to 0.19 and 0.14 M-circle dot of radioactive 56Ni, on the low end of inferred hypernova nickel masses. The yields are publicly available at Zenodo (doi: 10.5281/zenodo.10578981) for comparison with stellar abundance patterns, inclusion in modeling galactic chemical evolution, and comparison with other yield calculations. Our results add to the yet-restricted corpus of nucleosynthesis yields from 3D magnetorotational supernova simulations and will help quantify yield uncertainties.
学科主题天文学 ; 恒星与银河系
URL标识查看原文
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
WOS关键词CORE-COLLAPSE SUPERNOVAE ; R-PROCESS NUCLEOSYNTHESIS ; GAMMA-RAY BURST ; ELECTRON-CAPTURE SUPERNOVAE ; POSSIBLE GRB PROGENITORS ; BLACK-HOLE FORMATION ; DRIVEN SUPERNOVA ; MODELS ; SIMULATIONS ; MODULES
资助项目MOST divided by National Natural Science Foundation of China[12288102]; MOST divided by National Natural Science Foundation of China[12393811]; MOST divided by National Natural Science Foundation of China[12090040/3]; National Natural Science Foundation of China (NSFC)[2021YFA1600401]; National Natural Science Foundation of China (NSFC)[2021YFA1600400]; National Key R&D Program of China[202302AN360001]; International Centre of Supernovae, Yunnan Key Laboratory[202201BC070003]; Natural Science Foundation of Yunnan Province[202401BC070007]; Yunnan Fundamental Research Project; Stellar Astrophysics Group at Yunnan Observatories, CAS[CE170100004]; Australian Research Council (ARC) Centre of Excellence (CoE)[FT160100035]; ARC Future Fellowship[DE210101050]; ARC Discovery Early Career Researcher Award (DECRA); National Computational Merit Allocation Scheme (NCMAS); Australasian Leadership Computing Grant; Australian Government; Australasian Leadership Computing Grant - Swinburne University of Technology; National Collaborative Research Infrastructure Strategy (NCRIS)
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001268122700001
出版者IOP Publishing Ltd
资助机构MOST divided by National Natural Science Foundation of China[12288102, 12393811, 12090040/3] ; National Natural Science Foundation of China (NSFC)[2021YFA1600401, 2021YFA1600400] ; National Key R&D Program of China[202302AN360001] ; International Centre of Supernovae, Yunnan Key Laboratory[202201BC070003] ; Natural Science Foundation of Yunnan Province[202401BC070007] ; Yunnan Fundamental Research Project ; Stellar Astrophysics Group at Yunnan Observatories, CAS[CE170100004] ; Australian Research Council (ARC) Centre of Excellence (CoE)[FT160100035] ; ARC Future Fellowship[DE210101050] ; ARC Discovery Early Career Researcher Award (DECRA) ; National Computational Merit Allocation Scheme (NCMAS) ; Australasian Leadership Computing Grant ; Australian Government ; Australasian Leadership Computing Grant - Swinburne University of Technology ; National Collaborative Research Infrastructure Strategy (NCRIS)
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/27488]  
专题云南天文台_大样本恒星演化研究组
云南天文台_中国科学院天体结构与演化重点实验室
作者单位1.OzGrav: The ARC Centre of Excellence for Gravitational-Wave Discovery, Hawthorn, VIC 3122, Australia
2.Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Hawthorn, VIC 3122, Australia;
3.School of Physics and Astronomy, Monash University, Clayton, VIC 3800, Australia;
4.International Centre of Supernovae, Yunnan Key Laboratory, Kunming 650216, People's Republic of China;
5.Key Laboratory for the Structure and Evolution of Celestial Objects, CAS, Kunming 650216, People's Republic of China;
6.Yunnan Observatories, Chinese Academy of Sciences (CAS), Kunming 650216, People's Republic of China; zhashuai@ynao.ac.cn;
推荐引用方式
GB/T 7714		 Cha S,Müller, Bernhard,Powell, Jade. Nucleosynthesis in the Innermost Ejecta of Magnetorotational Supernova Explosions in Three Dimensions[J]. ASTROPHYSICAL JOURNAL,2024,969(2).
APA 查帅,Müller, Bernhard,&Powell, Jade.(2024).Nucleosynthesis in the Innermost Ejecta of Magnetorotational Supernova Explosions in Three Dimensions.ASTROPHYSICAL JOURNAL,969(2).
MLA 查帅,et al."Nucleosynthesis in the Innermost Ejecta of Magnetorotational Supernova Explosions in Three Dimensions".ASTROPHYSICAL JOURNAL 969.2(2024).

入库方式： OAI收割

来源：云南天文台

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。