Cross sections for production of the CO(A 1Π−X 1Σ) Fourth Positive band system and O(3S) by photodissociation of CO2

Autor:	J. E. Mentall, E. P. Gentieu
Rok vydání:	1973
Předmět:	Cross section (geometry) Martian Photon Volume (thermodynamics) Chemistry Photodissociation General Physics and Astronomy Atmosphere of Mars Physical and Theoretical Chemistry Atomic physics Electron ionization Excitation
Zdroj:	The Journal of Chemical Physics. 58:4803-4815
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1679063
Popis:	The CO(A 1 Pi) cross sections reported here, along with previously determined electron impact results, establish the basis for calculating CO fourth positive system volume emission rates in the Martian dayglow. Calculated volume emission rates in turn determine relative distribution of photon vs. electron impact as mechanisms for producing CO(A 1 Pi) in the Mars atmosphere. The smallness of the O(1304) cross section confirms previous indirect evidence that photodissociative excitation of CO2 is not an important source of O(3 S) in the upper atmosphere of Mars.
Databáze:	OpenAIRE
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