Effective collision strengths for transitions in Fe XV.
Abstract
Collision strengths for transitions among the energetically lowest 53 fine-structure levels belonging to the (1s22s22p6) 3{l}2, 3{l}3{l}', 3s4{l} and 3p4s configurations of Fe XV are computed, over an electron energy range below 160 Ryd, using the Dirac Atomic R-matrix Code (DARC) of Norrington & Grant (\cite{Norrington03}). Effective collision strengths, obtained after integrating the collision strengths over a Maxwellian distribution of electron energies, have also been calculated. These results of effective collision strengths are tabulated for all 1378 inelastic transitions over a wide temperature range of 105 to 107 K. Comparisons are also made with other R-matrix calculations and the accuracy of the results is assessed.
Table 4 is only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/410/349- Publication:
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Astronomy and Astrophysics
- Pub Date:
- October 2003
- DOI:
- 10.1051/0004-6361:20031193
- Bibcode:
- 2003A&A...410..349A
- Keywords:
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- atomic data;
- atomic processes