Modeling of Liquid Water on CM Meteorite Parent Bodies and Implications for Amino Acid Racemization

  title={Modeling of Liquid Water on CM Meteorite Parent Bodies and Implications for Amino Acid Racemization},
  author={Barbara A. Cohen and Robert F. Coker Department of Planetary Sciences and AZ Uof and Dep. of Physics and Astronomy and University of Leeds},
Abstract We have constructed an asteroid model with the intent of tracking the radial and temporal dependence of temperature and composition throughout a 100-km-diameter CM-type parent body, with emphasis on constraining the temperature and duration of a liquid water phase. We produce a nonuniform distribution where liquid water persists longest and is hottest in the deepest zones and the regolith never sees conditions appropriate to aqueous alteration. We apply the model predictions of the… 

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