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. ORCID logoORCID: https://orcid.org/0000-0001-7418-7996 and Zhao, G.;
    Item type:Article
    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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