R-matrix electron-impact excitation data for the B-like iso-electronic sequence
Liang, G. Y. and Badnell, N. R. and Zhao, G. (2012) R-matrix electron-impact excitation data for the B-like iso-electronic sequence. Astronomy and Astrophysics, 547. A87. ISSN 0004-6361
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Abstract
We have carried-out parallel intermediate-coupling frame transformation R-matrix calculations for electron-impact excitation amongst the 204 close-coupling levels of the 2sx2py (x + y = 3), 2s2{3,4}l, 2s2p{3,4}l, and 2p23l configurations for all boron-like ions from C+ to Kr31+. We have also included the configuration interaction due to the 2p24l, 2s3l3l′ and 2p3s3l configurations. A detailed comparison has been made of the target structure and excitation data for four specific ions (viz., Ne5+, Ar13+, Fe21+ and Kr31+) that span the sequence, so as to assess the accuracy over the entire sequence. Effective collision strengths (Υs) are presented at temperatures ranging from 2 × 102(z + 1)2 K to 2 × 106(z + 1)2 K (where z is the residual charge of the ions, i.e. Z − 5). Detailed comparisons for the (effective) collision strengths (Υs) Ω are made with the results of previous calculations for the four representative ions. Furthermore, we examine the iso-electronic trends of the effective collision strengths as a function of temperature.
Creators(s): |
Liang, G. Y., Badnell, N. R. ![]() | Item type: | Article |
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ID code: | 56538 |
Notes: | Reproduced with permission from Astronomy & Astrophysics, © ESO 2012. |
Keywords: | atomic data, atomic processes, plasmas, Plasma physics. Ionized gases, Astronomy and Astrophysics, Space and Planetary Science |
Subjects: | Science > Physics > Plasma physics. Ionized gases |
Department: | Faculty of Science > Physics |
Depositing user: | Pure Administrator |
Date deposited: | 27 May 2016 08:36 |
Last modified: | 22 Jan 2021 04:09 |
URI: | https://strathprints.strath.ac.uk/id/eprint/56538 |
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