Efficiency of Molecular Hydrogen Formation on Silicates
Astrophysics
2009-10-30 v1
Abstract
We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those encountered in the interstellar medium. On the basis of our experimental evidence, we recognize that there are two main regimes of H coverage that are of astrophysical importance; for each of them we provide an expression giving the production rate of molecular hydrogen in interstellar clouds.
Cite
@article{arxiv.astro-ph/9704236,
title = {Efficiency of Molecular Hydrogen Formation on Silicates},
author = {V. Pirronello and O. Biham and C. Liu and L. Shen and G. Vidali},
journal= {arXiv preprint arXiv:astro-ph/9704236},
year = {2009}
}
Comments
Accepted for publications in: Astrophysical Journal Letters. Corresponding author: Gianfranco Vidali: gvidali@syr.edu (http://physics.syr.edu/research/surface_physics/)