Volume 511, February 2010
|Number of page(s)||5|
|Section||Atomic, molecular, and nuclear data|
|Published online||26 February 2010|
Rotational excitation and de-excitation of CH+ molecules by 4He atoms
Institut des Sciences Moléculaires, UMR5255-CNRS, Université de Bordeaux, France e-mail: email@example.com
Accepted: 11 November 2009
We present a quantum mechanical investigation of rotational energy transfer in cold collisions of CH+ with 4He atoms. We use a global 3D potential energy surface obtained using the reproducing Kernel Hilbert Space (RKHS) method. Rotational deactivation transition cross-sections are performed for collision energy ranging from 10-6 to 3000 cm-1 and the corresponding rotational deactivation and excitation rate coefficients are evaluated for the transitions of levels up to j = 5 and temperatures up to 500 K. We also discuss the validity of the rigid rotor approximation for this collision.
Key words: molecular data / molecular processes / ISM: molecules / astrochemistry
© ESO, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.