On the Formation of Co 2 and Other Interstellar Ices

@inproceedings{Garrod2011OnTF,
  title={On the Formation of Co 2 and Other Interstellar Ices},
  author={Robin Tristan Garrod and Thomas Pauly},
  year={2011}
}
We investigate the formation and evolution of interstellar dust-grain ices under dark-cloud conditions, with a particular emphasis on CO2. We use a three-phase model (gas/surface/mantle) to simulate the coupled gas–grain chemistry, allowing the distinction of the chemically active surface from the ice layers preserved in the mantle beneath. The model includes a treatment of the competition between barrier-mediated surface reactions and thermalhopping processes. The results show excellent… CONTINUE READING