Collisional depolarization of molecular lines. Application to the SiO+H isotropic collisions

M. Derouich (1, 2)

1 IAC - Instituto de Astrofisica de Canarias
2 LERMA - Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique

This paper reports the first theoretical study on the collisional depolarization and polarization transfer for rovibrational levels of diatomic molecules in the infinite-order-sudden approximation. As an application, we compute depolarization and polarization transfer rates for rotational levels J = 1,..., 99 within the vibrational quantum numbers v = 0, 1, 2, 3 of the SiO molecules in collisions with neutral hydrogen atoms for temperatures 400

Domaines: Astrophysique [astro-ph]

M. Derouich. Collisional depolarization of molecular lines. Application to the SiO+H isotropic collisions. Astronomy and Astrophysics - A&A, 2006, 449, pp.1-7. ⟨10.1051/0004-6361:20054179⟩. ⟨hal-03785156⟩