LExEn: Dynamical Forcing of Extreme Variations in Planetary Obliquities

LExEn：行星倾角极端变化的动力强迫

• 批准号: 9978269
• 负责人: William Ward
• 金额: --
• 依托单位: Southwest Research Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-15 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9978269&HistoricalAwards=false
• 关键词: LExEn; Dynamical; Forcing; Extreme; Variations

P.I.: Ward, William Proposal Number: AST-9978269Drs. Ward and Canup will investigate the stability of planets against large changes in obliquity which would dramatically affect seasons, climate, and planetary habitability. A variety of planetary system architectures will be considered, and the role of a large satellite in stabilizing a planet's obliquity will be explored. An emphasis will be placed on planets that also occupy the habitable zone around a star. They will investigate the sensitivity of planetary stability to a variety of planetary system architectures, their selection of which will be guided by results from modeling planetary formation and recent discoveries of extrasolar planetary systems.

P.I.：Ward，William 提案编号：AST-9978269 Drs. Ward和Canup将研究行星的稳定性，以对抗可能严重影响季节，气候和行星可居住性的大规模变化。 将考虑各种行星系统的结构，并将探讨大型卫星在稳定行星稳定性方面的作用。 重点将放在行星上，也占据了星星周围的可居住区。 他们将研究行星稳定性对各种行星系统结构的敏感性，他们的选择将由模拟行星形成和最近发现的太阳系外行星系统的结果指导。