low temperature Ne 2, 3 collision strengths
Fine-structure electron-impact excitation of Ne+ and Ne2+ for low temperature astrophysical plasmas
Qianxia Wang, S. D. Loch, Y. Li, M. S. Pindzola, R. Cumbee, P. Stancil, B.
McLaughlin, C. P. Ballance
(Submitted on 11 Jul 2016)
Collision strengths for electron-impact of fine-structure level excitation within the
ground term of Ne+ and Ne2+ are calculated using the Breit-Pauli, Intermediate
Coupling Frame Transformation, and DARC R-matrix methods. Maxwellian-
averaged effective collision strengths and excitation rate coefficient qij are
presented for each. The application of the current calculations is to very low
temperature astrophysical plasmas, thus we examine the sensitivity of the
effective collision strengths down to 10 K. The use of the various theoretical
methods allows us to place estimated uncertainties on the recommended
effective collision strengths. We also investigate the sensitivity of the collision
strengths to the resonance positions and underlying atomic structure. Good
agreement is found with previous R-matrix calculations at higher temperature.
Subjects: Atomic Physics (physics.atom-ph)
Cite as: arXiv:1607.03158 [physics.atom-ph]
(or arXiv:1607.03158v1 [physics.atom-ph] for this version)
Submission history
From: Qianxia Wang Qianxia Wang [view email]
[v1] Mon, 11 Jul 2016 20:37:25 GMT (219kb,D)
these to not join continuously with our current high-T CS data