Stellar Occultation Studies of Giant Planet Systems

巨行星系统的恒星掩星研究

• 批准号: 0073447
• 负责人: James Elliot
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-15 至 2005-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0073447&HistoricalAwards=false
• 关键词: Stellar; Occultation; Studies; Giant; Planet

AST 0073447ElliotStellar occultations can probe ring systems and atmospheres in the outer solar systemwith spatial resolutions of a few kilometers-several orders of magnitude better than theresolution of any other Earth-based method. Dr. Elliot and his co-researchers will observe the highest quality occultations by the giant planet systems occurring during the 2000-2003 period and then use these data to investigate several physical aspects of rings and atmospheres. The program emphasizes a combination of the highest temporal resolution multi-wavelength observations possible using today's and tomorrow's state-of-the-art instrumentation, along with further analyses of the highest quality archived occultation observations. In addition to observations of Uranus and several Jovian events (particularly those sampling auroral regions), a strong observational emphasis is being placed on Titan and Saturn leading up to the 2004 arrival of the Cassini spacecraft and the deployment of the Huygens probe into Titan's atmosphere. The occultation studies will include an investigation of the temperature, pressure, and number density profiles in the upper atmospheres of Uranus, Jupiter, and Saturn. This project is funded by the Planetary Astronomy Program in the Division of Astronomical Sciences.***

AST 0073447 Elliot恒星掩星可以探测太阳系外的光环系统和大气层，其空间分辨率为几个千分之一，比任何其他基于地球的方法的分辨率都要好几个数量级。 埃利奥特博士和他的合作研究人员将观察2000-2003年期间发生的巨行星系统的最高质量掩星，然后利用这些数据来研究环和大气的几个物理方面。 该方案强调使用当今和未来最先进的仪器进行最高时间分辨率多波长观测，沿着进一步分析最高质量的存档掩星观测。除了观测天王星和几个木星事件（特别是极光区取样）外，在2004年卡西尼号航天器到达和惠更斯号探测器部署到土卫六大气层之前，对土卫六和土星的观测也是重点。掩星研究将包括对天王星、木星和土星上层大气的温度、压力和数密度分布的调查。该项目由天文科学部行星天文学计划资助。