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Surface astrochemistry: a computational chemistry perspective
Published online by Cambridge University Press: 04 September 2018
Abstract
Molecules in space are synthesized via a large variety of gas-phase reactions, and reactions on dust-grain surfaces, where the surface acts as a catalyst. Especially, saturated, hydrogen-rich molecules are formed through surface chemistry. Astrochemical models have developed over the decades to understand the molecular processes in the interstellar medium, taking into account grain surface chemistry. However, essential input information for gas-grain models, such as binding energies of molecules to the surface, have been derived experimentally only for a handful of species, leaving hundreds of species with highly uncertain estimates. Moreover, some fundamental processes are not well enough constrained to implement these into the models.
The proceedings gives three examples how computational chemistry techniques can help answer fundamental questions regarding grain surface chemistry.
- Type
- Contributed Papers
- Information
- Proceedings of the International Astronomical Union , Volume 13 , Symposium S332: Astrochemistry VII: Through the Cosmos from Galaxies to Planets , March 2017 , pp. 293 - 304
- Copyright
- Copyright © International Astronomical Union 2018
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