Title

Molecular Hydrogen Formation on Ice Under Interstellar Conditions

Author(s)/Creator(s)

Hagai B. Perets, The Hebrew University of Jerusalem
Gianfranco Vidali, Syracuse University
Joe Roser, Syracuse University
Sol Swords, Syracuse University

Document Type

Article

Date

3-29-2005

Keywords

TBD

Language

English

Disciplines

Physics

Description/Abstract

The results of experiments on the formation of molecular hydrogen on low density and high density amorphous ice surfaces are analyzed using a rate equation model. The activation energy barriers for the relevant diffusion and desorption processes are obtained. The more porous morphology of the low density ice gives rise to a broader spectrum of energy barriers compared to the high density ice. Inserting these parameters into the rate equation model under steady state conditions we evaluate the production rate of molecular hydrogen on ice-coated interstellar dust grains.

Additional Information

20 pages, 3 tables and 10 figures. Accepted to ApJ. Minor changes made and adittional references added More information at http://arxiv.org/abs/astro-ph/0412202

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Recommended Citation

Perets, Hagai B.; Vidali, Gianfranco; Roser, Joe; and Swords, Sol, "Molecular Hydrogen Formation on Ice Under Interstellar Conditions" (2005). Physics - All Scholarship. 508.
https://surface.syr.edu/phy/508

Source

Harvested from Arxiv.org