Transition states with angular momentum; some applications to astrophysics

Laurent Wiesenfeld and A. Faure

Laboratoire d?Astrophysique de l?Observatoire de Grenoble Universite Joseph-Fourier Grenoble France

Chemical reactions in astrophysical media have some peculiarities that make them particularly interesting to study with help of transition states. Because of the extreme dilution of the gas (10-6 to 10?9 part/cm3), only two body collisions are of importance, without any influence of a solvent. Of particular importance also are inelastic collisions that transfer the orbital angular momentum of the incoming H2 molecule onto rotational/vibrational excitation of its target.


[1] L Wiesenfeld, A Faure and T Johann J. Phys. B: At. Mol. Opt. Phys. 36 (2003) 1319
[2] L. Wiesenfeld J. Phys. A: Math. Gen. 37 No 12 (26 March 2004) L143
[3] A. Faure, L. Wiesenfeld, P. Valiron, Chem. Phys., 254 (49-67) (2000)