English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/14506
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Citado 7 veces en Web of Knowledge®  |  Ver citas en Google académico
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Key role of spin-orbit effects in the relaxation of CO2(010) by thermal collisions with O(3Pj)

AutorLara Castells, María Pilar de ; Hernández, Marta I. ; Delgado Barrio, Gerardo ; Villarreal, Pablo ; López-Puertas, Manuel
Fecha de publicaciónmay-2007
EditorTaylor & Francis
CitaciónMolecular Physics 105(9): 1171-1181 (2007)
ResumenThe quenching of CO2(010) by thermal collisions with ground-state atomic oxygen is a crucial process in determining the cooling rates of the thermospheres of Earth, Venus and Mars and then to predict changes due to the increase of this green-house gas. One of the questions raised by the experiments and aeronomical observations is with regard to the physical origin of the non-Landau-Teller and negligible temperature dependence of the vibrational relaxation rate at the temperatures existing in the thermospheres (150K ≤ T ≥ 550 K). In this context, we extend our previous work on quantum scattering calculations performed on high-quality ab initio potential energy surfaces (PESs) [M. P. de Lara-Castells, Marta I. Hernndez, G. Delgado-Barrio, P. Villarreal, and M. Lpez-Puertas, J. Chem. Phys. 124, 164302 (2006)]. and report translational-energy averaged quenching probabilities for the previously reported C(2v) PES as well as for additional orientational approaches of the oxygen atom. Our results reveal the spin-orbit couplings to be responsible for the temperature dependence of the quenching rate estimated from the analysis of upper atmospheric data. In addition, we analyse the effect of the PESs' anisotropy on the quenching process.
Descripción11 pages, 8 figures.
Versión del editorhttp://dx.doi.org/10.1080/00268970701244809
URIhttp://hdl.handle.net/10261/14506
DOI10.1080/00268970701244809
ISSN0026-8976 (Print)
1362–3028 (Online)
Aparece en las colecciones: (IAA) Artículos
(CFMAC-IFF) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro completo
 



NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.