Efficiency of Molecular Hydrogen Formation on Silicates | Zendy

V. Pirronello | Zendy; Ofer Biham | Zendy; Chi Liu | Zendy; L. Shen | Zendy; Gianfranco Vidali | Zendy

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Efficiency of Molecular Hydrogen Formation on Silicates

Author(s) -

V. Pirronello,

Ofer Biham,

Chi Liu,

L. Shen,

Gianfranco Vidali

Publication year - 1997

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310746

Subject(s) - hydrogen , hydrogen molecule , interstellar medium , slab , astrobiology , molecular cloud , chemical physics , interstellar cloud , recombination , chemistry , astrophysics , physics , geophysics , stars , galaxy , biochemistry , organic chemistry , gene

We report on laboratory measurements of molecular hydrogen formation andrecombination on an olivine slab as a function of surface temperature underconditions relevant to those encountered in the interstellar medium. On thebasis of our experimental evidence, we recognize that there are two mainregimes of H coverage that are of astrophysical importance; for each of them weprovide an expression giving the production rate of molecular hydrogen ininterstellar clouds.

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