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H2 formation on Mg-rich amorphous silicates

Published online by Cambridge University Press:  12 October 2020

Vito Mennella Open the ORCID record for Vito Mennella [Opens in a new window]  and
Tushar Suhasaria Open the ORCID record for Tushar Suhasaria [Opens in a new window]
Vito Mennella
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy email: vito.mennella@inaf.it
Tushar Suhasaria
Affiliation:
INAF-Osservatorio Astronomico di Capodimonte, Salita Moiariello 16, 80131, Napoli, Italy email: vito.mennella@inaf.it
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Abstract

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We present the results of an experimental study on the interaction of D atoms with Mg-rich amorphous silicates. The effects of D irradiation have been analyzed by infrared spectroscopy. The results indicate that HD forms by abstraction of hydrogen atoms chemisorbed in the hydroxyl groups of silicate grains. The formation process occurs for grain and atom temperatures relevant to photodissociation regions.

Keywords

Astrochemistrymolecular processesmethods: laboratorytechniques: spectroscopic
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 109 - 113
Copyright
© International Astronomical Union 2020

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