This work reports results on the recombination of hydrogen atoms on a graph
ite surface at 10 K obtained using a detailed semi-classical molecular dyna
mics method in connection with the use of recently proposed ab initio poten
tial energy surfaces. The calculated recombination probabilities together w
ith the vibrational distributions of the formed H-2 molecules obtained assu
ming that the surface reaction proceeds via the Eley-Rideal mechanism can h
ave an impact on the chemistry of H-2 formation in interstellar space. (C)
2001 Published by Elsevier Science B.V.