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New Results in Three-Dimensional Core-Collapse Supernova Theory
New Results in Three-Dimensional Core-Collapse Supernova Theory
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211152022
- ISBN
- 9798384463672
- DDC
- 523
- 저자명
- Wang, Tianshu.
- 서명/저자
- New Results in Three-Dimensional Core-Collapse Supernova Theory
- 발행사항
- [Sl] : Princeton University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 229 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-04, Section: B.
- 주기사항
- Advisor: Burrows, Adam.
- 학위논문주기
- Thesis (Ph.D.)--Princeton University, 2024.
- 초록/해제
- 요약Core-collapse supernovae (CCSNe) play an important role in many parts of astrophysics from the formation of compact objects to the dynamical evolution of galaxies, and they provide laboratories for the study of fundamental physics in extreme conditions. In this dissertation, I will present some new results in the three-dimensional core-collapse supernova theory based on long-term high-fidelity first-principle three-dimensional simulations. I will will begin with a brief introduction to the observational and theoretical aspects of CCSNe, as well as a description to the simulation code Fornax. Then I will describe the upgrades on the code in the past few years, which have significantly sped up the code. These upgrades are essential for the generation of a large long-term 3D CCSN simulation suite. I will also describe some tests of the simulation code. After that, I will present the scientific findings based on the new simulations. I will first discuss the CCSN explosion mechanism and derive an easy-to-use accurate explosion criteria. Then I will compare the 1D and 3D simulation results of the lowest-mass models, showing that multi-dimensional effects can significantly influence the CCSN outcomes even if the 3D explosion looks spherical and a successful explosion can be achieved in 1D. Since the 1D and 3D differences are mostly visible in the neutrino-driven wind phase, I will present a study on the neutrino-driven wind properties in 3D simulations covering a large range of progenitor masses. Then I will take the CCSN nucleosynthesis as an example to show that the multi-dimensional effects and the long-term evolution strongly influence the theoretical predictions of observables.
- 일반주제명
- Astrophysics
- 일반주제명
- Physics
- 일반주제명
- Astronomy
- 일반주제명
- Planetology
- 키워드
- Nucleosynthesis
- 키워드
- CCSN explosion
- 키워드
- Galaxies
- 기타저자
- Princeton University Astrophysical Sciences
- 기본자료저록
- Dissertations Abstracts International. 86-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017162522
■00520250211152022
■006m o d
■007cr#unu||||||||
■020 ▼a9798384463672
■035 ▼a(MiAaPQ)AAI31332396
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a523
■1001 ▼aWang, Tianshu.
■24510▼aNew Results in Three-Dimensional Core-Collapse Supernova Theory
■260 ▼a[Sl]▼bPrinceton University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a229 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-04, Section: B.
■500 ▼aAdvisor: Burrows, Adam.
■5021 ▼aThesis (Ph.D.)--Princeton University, 2024.
■520 ▼aCore-collapse supernovae (CCSNe) play an important role in many parts of astrophysics from the formation of compact objects to the dynamical evolution of galaxies, and they provide laboratories for the study of fundamental physics in extreme conditions. In this dissertation, I will present some new results in the three-dimensional core-collapse supernova theory based on long-term high-fidelity first-principle three-dimensional simulations. I will will begin with a brief introduction to the observational and theoretical aspects of CCSNe, as well as a description to the simulation code Fornax. Then I will describe the upgrades on the code in the past few years, which have significantly sped up the code. These upgrades are essential for the generation of a large long-term 3D CCSN simulation suite. I will also describe some tests of the simulation code. After that, I will present the scientific findings based on the new simulations. I will first discuss the CCSN explosion mechanism and derive an easy-to-use accurate explosion criteria. Then I will compare the 1D and 3D simulation results of the lowest-mass models, showing that multi-dimensional effects can significantly influence the CCSN outcomes even if the 3D explosion looks spherical and a successful explosion can be achieved in 1D. Since the 1D and 3D differences are mostly visible in the neutrino-driven wind phase, I will present a study on the neutrino-driven wind properties in 3D simulations covering a large range of progenitor masses. Then I will take the CCSN nucleosynthesis as an example to show that the multi-dimensional effects and the long-term evolution strongly influence the theoretical predictions of observables.
■590 ▼aSchool code: 0181.
■650 4▼aAstrophysics
■650 4▼aPhysics
■650 4▼aAstronomy
■650 4▼aPlanetology
■653 ▼aCore-collapse supernovae
■653 ▼aNucleosynthesis
■653 ▼aCCSN explosion
■653 ▼aGalaxies
■653 ▼aMulti-dimensional
■690 ▼a0596
■690 ▼a0590
■690 ▼a0606
■690 ▼a0605
■71020▼aPrinceton University▼bAstrophysical Sciences.
■7730 ▼tDissertations Abstracts International▼g86-04B.
■790 ▼a0181
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17162522▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
