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Simulation of Prebiotic Processing by Comet and Meteoroid Impact: Implications for Life on Early Earth and Other PlanetsWe develop a reacting flow model to simulate the shock induced chemistry of comets and meteoroids entering planetary atmospheres. Various atmospheric compositions comprising of simpler molecules (i.e., CH4, CO2, H2O, etc.) are investigated to determine the production efficiency of more complex prebiotic molecules as a function of composition, pressure, and entry velocity. The possible role of comets and meteoroids in creating the inventory of prebiotic material necessary for life on Early Earth is considered. Comets and meteoroids can also introduce new materials from the Interstellar Medium (ISM) to planetary atmospheres. The ablation of water from comets, introducing the element oxygen into Titan's atmosphere will also be considered and its implications for the formation of organic and prebiotic material.
Document ID
20040012803
Document Type
Preprint (Draft being sent to journal)
Authors
Dateo, Christopher E. (Eloret Corp. Moffett Field, CA, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Lunar and Planetary Science and Exploration
Meeting Information
ACS: Honoring Innovators and Pioneers in Aviation and the Atmosphere, Earth''s Atmosphere and Beyond(Menlo Park, CA)
Funding Number(s)
CONTRACT_GRANT: NAS2-00062
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.