Coronas and Escape from the Martian Atmosphere, Ancient and Modern

古代与现代的日冕与逃离火星大气层

• 批准号: 0315153
• 负责人: Jane Fox
• 金额: $ 2.99万
• 依托单位: Wright State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2004-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0315153&HistoricalAwards=false
• 关键词: Coronas; Escape; Martian; Atmosphere; Ancient

Jane FoxState University of New York, Stony BrookCoronas and Escape from the Martian Atmosphere, Ancient and ModernThe evolution of the Martian atmosphere is influenced by a number of processes, including outgassing from the planetary interior, impacts of comets and meteors, atmosphere-surface interactions, and by escape of volatiles to space. A quantification of the processes by which volatiles are lost irreversibly to space is crucial to a reconstruction of the evolution of the Martian environment. Dr. Jane Fox and her colleagues will model the photochemical and sputtering escape fluxes of oxygen, carbon, and nitrogen simultaneously as a function of time from the present to the end of late heavy bombardment, about 3.8 billion years ago. This will allow the investigators to predict the history of nitrogen, water, and carbon dioxide in the Martian atmosphere.

纽约州立大学的简·福克斯，Stony BrookCoronas和逃离火星大气层，火星大气层的古代和现代演变受到许多过程的影响，包括行星内部的放气，彗星和流星的影响，大气-表面相互作用，以及挥发物逃逸到太空。 挥发物不可逆地损失到太空的过程的量化对于重建火星环境的演变至关重要。 简·福克斯博士和她的同事将模拟从现在到大约38亿年前晚期重轰炸结束期间，氧、碳和氮的光化学和溅射逃逸通量随时间的变化。 这将使研究人员能够预测火星大气中氮、水和二氧化碳的历史。