H2 Formation on and Desorption from Amorphous Silicates

Details H2 Formation on and Desorption from Amorphous Silicates H2 Formation on and Desorption from Amorphous Silicates

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aas...212.0330v&link_type=abstract

American Astronomical Society, AAS Meeting #212, #3.30; Bulletin of the American Astronomical Society, Vol. 40, p.189

Astronomy and Astrophysics

Astronomy

Scientific paper

We illustrate recent results of a laboratory investigation on the processes leading to the formation of molecular hydrogen on surfaces of silicates. Amorphous silicates of different Fe/Mg relative composition were used in our studies; comparisons are made with results obtained on a polycrystalline silicate surface. The process of ejection of molecules from these surfaces has also been studied. An analysis of surfaces of representative silicates using Atom Force Microscopy will be shown.
This work was supported by NASA through NASA NNG06GD84G and NSF AST-0507405 (G.V.).

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