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Kinetic Monte Carlo method for simulating astrochemical kinetics: Hydrogen chemistry in diffuse clouds |
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| Authors: | A G Tsvetkov V I Shematovich |
| Institution: | (1) Istituto Nazionale di Astrofisica, Osservatorio Astrofisico di Catania, Via S. Sofia 78, 95123 Catania, Italy;(2) Actinium Chemical Research, Via Casilina 1626/A, 00133 Rome, Italy;(3) Instituto de Astrofisica de Canarias, Via Lactea s/n, E-38200 La Laguna, Tenerife, 2 CSIC, Spain |
| Abstract: | We perform numerical simulations of the molecular hydrogen production on the surface of interstellar dust grains and its dissociation by the ultraviolet background in conditions typical for the interstellar medium. The kinetic version of the Monte Carlo method is used for the modeling of the catalytic chemical reactions on the surface of the dust fraction and in the surrounding medium. Our simulations show the importance of the interstellar dust particles for hydrogen chemistry in diffuse molecular clouds. |
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