Calculation of radiative transition probabilities and radiative recombination rate coefficients for H2, OH, H 2+ and OH+ molecules |
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| Authors: | R Riahi P Teulet Y Cressault A Gleizes and Z Ben Lakhdar |
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| Institution: | (1) Laboratoire de Spectroscopie Atomique, Moléculaire et Applications (LSAMA), Faculté des Sciences de Tunis, Université de Tunis el Manar, 1060 Tunis, Tunisia;(2) Laboratoire Plasma et Conversion d’Energie (LAPLACE), UMR UPS-INP-CNRS 5213, Université Paul Sabatier Toulouse 3, 118 route de Narbonne, 31062 Toulouse Cedex 09, France |
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| Abstract: | A method is presented to calculate the radiative transition probabilities and the radiative recombination rate coefficients
between electronic molecular states. Total transition probabilities are determined from vibrational transition probabilities
without considering the detailed rotational structure of the molecular electronic states. Radiative recombination rate coefficients
are obtained from the computation of vibrational photo-ionisation cross sections. Concerning spontaneous emission, Lyman (B
→ X) and Werner (C → X) band systems of H2 and Meinel (A → X), (B → A) and (B → X) band systems of OH are investigated. For radiative recombination, transitions between
H2+ (X) and H2(X), and between OH+(X, a, A, b, and c) and OH(X) are considered. Transition probabilities and recombination rate coefficients are calculated
as a function of temperature in the range 1500–15 000 K. |
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| Keywords: | PACS" target="_blank">PACS 52 20 -j Elementary processes in plasmas 82 33 Xj Plasma reactions (including flowing afterglow and electric discharges) |
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