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Fine-structure excitation of OI and CI by impact with atomic hydrogen

TitleFine-structure excitation of OI and CI by impact with atomic hydrogen
Publication TypeJournal Article
Year of Publication2007
AuthorsAbrahamsson, E, Krems, RV, Dalgarno, A
JournalASTROPHYSICAL JOURNAL
Volume654
Pagination1171-1174
Date PublishedJAN 10
ISSN0004-637X
Abstract

Using accurate interaction potentials, we perform refined calculations of rate coefficients for the fine-structure excitations in collisions of O(P-3) and C(P-3) with atomic hydrogen. The results are presented in the form of analytical functions approximating the rate coefficients over a wide range of temperatures. We examine the sensitivity of the collision dynamics to variations of the interaction potentials and the couplings to electronically excited states.

DOI10.1086/509631