Structure of Exoplanetary Atmospheres

系外行星大气层的结构

• 批准号: 0507621
• 负责人: Terrence Rettig
• 金额: $ 12万
• 依托单位: University of Notre Dame
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-15 至 2010-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0507621&HistoricalAwards=false
• 关键词: Structure; Exoplanetary; Atmospheres

AST-0507621Terrence RettigUniversity of Notre DameStructure of Exoplanetary AtmospheresABSTRACTExperimental and analytical tools will be developed to detect and characterize exoplanetaryatmospheres during transits. Particular attention will be paid to HD 209458B (for which only atomicspecies have been observed to date) and the detection of infrared H3 molecular absorption linesusing high resolution high signal-to-noise near infrared spectroscopy. As one of the dominantregulators of thermal balance in gas giant ionospheres, this molecule is of interest as a diagnostic ofthe atmospheric interface and will yield valuable information on the thermodynamic conditions inthe outer atmosphere. Analysis and statistical modeling of molecular absorption lines of H3 willenable a direct probe of the temperature, column density and structure of the thermosphere of HotJupiters and constrain current models. To meet the project goals, sophisticated data reduction andanalysis methods will also be formulated and employed.The work here will provide input into the design and development of future instruments for thedetection of molecular absorption in exoplanetary atmospheres. The algorithms developed here willalso be made publicly available. Graduate students and undergraduates (through the NSF sponsoredResearch Experiences for Undergraduates at Notre Dame) will play a significant role in the researchand subsequent dissemination.

将开发出eSt-0507621 terrence tertiguniversity在跨跨跨跨ter虫期间检测和表征外部球星的extresstresstresspractementer和分析工具。将特别注意HD 209458B（迄今为止仅观察到原子能），并检测红外H3分子吸收线，从而在红外光谱附近高分辨率高。作为气体巨型电离层热平衡的统治者之一，该分子是对大气界面的诊断，将产生有关外部大气中热力学条件的宝贵信息。 H3的分子吸收线的分析和统计模型将直接探测热jupiter的温度，柱密度和结构，并限制电流模型。为了满足项目目标，还将制定和使用复杂的数据减少和分析方法。此处的工作将提供对超级行星气氛中分子吸收的未来工具的设计和开发的输入。在此处开发的WilloLSO公开可用的算法。研究生和本科生（通过巴黎圣母院的本科生的NSF赞助研究经验）将在研究和随后的传播中发挥重要作用。