Nuclear Astrophysics at TRIUMF-ISAC: Stellar Burning Reaction Studies with DRAGON and TUDA

TRUMF-ISAC 的核天体物理学：使用 DRAGON 和 TUDA 研究恒星燃烧反应

• 批准号: SAPPJ-2019-00039
• 负责人: Ruiz, Chris
• 金额: $ 14.21万
• 依托单位: TRIUMF
• 依托单位国家: 加拿大
• 项目类别: Subatomic Physics Envelope - Project
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=739452
• 关键词: Nuclear; Astrophysics; TRIUMF; ISAC; Stellar

Nuclear astrophysics is the study of both the origin of the chemical elements, and how stars shine, evolve and ultimately die, from the perspective of interactions between atomic nuclei. These interactions are the governing underlying reason for everything in stars that we see with all of today's pantheon of astronomical instruments. In order to understand them fully, we must explore the interactions between atomic nuclei in the laboratory, especially rare isotopes that don't exist on Earth naturally. This is done using particle accelerators, rare isotope beams, and purpose-built specialist facilities such as DRAGON at TRIUMF-ISAC. TRIUMF-ISAC hosts a range of world-class experimental facilities purposely built for nuclear astrophysics. Most well-known are the DRAGON and TUDA facilities, that operate in close collaboration. The overarching theme of the astrophysics program is the laboratory measurement of nuclear reactions critical in stellar burning and explosions. ISAC has some of the best rare isotope beams on the planet, and with the combination of that fact and the world-class instruments at DRAGON and TUDA, it is the top laboratory to go to for measurement of some of these nuclear reactions. The program attracts researchers from all over the world, and provides an excellent base for Canadian researchers to be at the top of the game in nuclear astrophysics and connect with the world.

核天体物理学是从原子核之间相互作用的角度研究化学元素的起源以及恒星如何发光，进化和最终死亡。这些相互作用是我们用今天的天文仪器所看到的恒星中一切事物的根本原因。为了充分了解它们，我们必须在实验室中探索原子核之间的相互作用，特别是地球上自然不存在的稀有同位素。这是通过使用粒子加速器，稀有同位素束和专门建造的专业设施，如TRIUMF-ISAC的DRAGON来完成的。 TRIUMF-ISAC拥有一系列专门为核天体物理学建造的世界级实验设施。最著名的是密切合作运营的Dragon和TUDA设施。天体物理学计划的首要主题是对恒星燃烧和爆炸中至关重要的核反应进行实验室测量。ISAC拥有地球上最好的稀有同位素束，加上Dragon和TUDA的世界级仪器，它是测量这些核反应的顶级实验室。该计划吸引了来自世界各地的研究人员，并为加拿大研究人员提供了一个良好的基础，使他们能够在核天体物理学领域处于领先地位并与世界联系。