Gianfranco Vidali et al 2005 J. Phys.: Conf. Ser. 6 36 doi:10.1088/1742-6596/6/1/003
Gianfranco Vidali1, Joe Roser1, Giulio Manicó2, Valerio Pirronello2, Hagai B Perets3 and Ofer Biham3
Show affiliationsMolecular hydrogen has an important role in the early stages of star formation as well as in the production of many other molecules that have been detected in the interstellar medium. In this review we show that it is now possible to study the formation of molecular hydrogen in simulated astrophysical environments. Since the formation of molecular hydrogen is believed to take place on dust grains, we show that surface science techniques such as thermal desorption and time-of-flight can be used to measure the recombination efficiency, the kinetics of reaction and the dynamics of desorption. The analysis of the experimental results using rate equations gives useful insight on the mechanisms of reaction and yields values of parameters that are used in theoretical models of interstellar cloud chemistry.
98.58.Ca Interstellar dust grains; diffuse emission; infrared cirrus
95.30.Ft Molecular and chemical processes and interactions
98.58.Db Molecular clouds, H2 clouds, dense clouds, and dark clouds
Issue 1 (2005)
Gianfranco Vidali et al 2005 J. Phys.: Conf. Ser. 6 36
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