Binary stars and Planets

双星和行星

• 批准号: DP240103174
• 负责人: Prof Alexander Heger
• 金额: $ 26.56万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2024
• 资助国家: 澳大利亚
• 起止时间: 2024-01-01 至 2026-12-31
• 项目状态: 未结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP240103174
• 关键词: Binary; stars; Planets

Aims: This project aims to study stellar and planetary systems in which the objects' spins are tilted with respect to their orbits, e.g., responsible for the seasons on earth. Significance: Observations show that many exoplanets and binary star systems are usually tilted, affecting their evolution. Expected outcomes include understanding the final spin states of white dwarfs, neutron stars, and black holes, and misaligned hot Jupiter systems. Benefits: This project should bring together expertise in stellar modelling, the theory of tidal interactions, and binary dynamics to make first inroads on this problem by allowing for both differential rotation and varying spin direction inside the star, advancing our knowledge on stars and planets.

目的：本项目旨在研究天体自旋相对于其轨道倾斜的恒星和行星系统，例如，负责地球上的季节。意义：观测表明，许多系外行星和双星星星系统通常是倾斜的，影响了它们的演化。 预期的成果包括理解白色矮星、中子星和黑洞的最终自旋状态，以及未对准的热木星系统。 优点：该项目应汇集恒星建模、潮汐相互作用理论和双星动力学方面的专业知识，通过允许星星内部的差速旋转和不同的自旋方向，首先解决这个问题，推进我们对恒星和行星的认识。