期刊
ASTRONOMY & ASTROPHYSICS
卷 500, 期 3, 页码 1263-1269出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/200911866
关键词
atomic data; atomic processes; plasmas
资金
- UK STFC [PP/E001254/1]
- Science and Technology Facilities Council [PP/E001254/1] Funding Source: researchfish
- STFC [PP/E001254/1] Funding Source: UKRI
We present results for the outer-shell electron-impact excitation of all Na-like ions from Mg(+) to Kr(25+) obtained using the intermediate-coupling frame transformation R-matrix approach. For each ion's calculation, the target and close-coupling expansions are both taken to be the 18 LS terms (32 levels) belonging to configurations [1s(2)2s(2)2p(6)]3l, 4l, 5l and 6l (l = 0-5). Effective collision strengths ((sic)s) are presented at temperatures ranging from 2 x 10(2)(q + 1)(2) K to 2 x 10(6)(q + 1)(2) K (where q is the residual charge of ions, i.e. Z - 11). Detailed comparisons for the (sic)s are made with the results of previous calculations for several ions, which span the sequence. Furthermore, we examine the iso-electronic trends of both low- and high-temperature effective collision strengths
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