Abstract
Collision strengths for transitions among the energetically lowest 46 fine-structure levels belonging to the (1s(2)) 2s(2)2p(2), 2s2p(3), 2p(4), and 2s(2)2p3l configurations of Ca XV are computed, over a wide electron energy range below 300 Ryd, using the Dirac Atomic R-matrix Code (DARC) of Norrington & Grant (2003). Resonances in the threshold region have been resolved in a fine energy mesh, and excitation rates are determined over a wide electron temperature range below 10(7) K. The results are compared with those available in the literature, and the accuracy of the data is assessed.
Original language | English |
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Pages (from-to) | 769-778 |
Number of pages | 10 |
Journal | Astronomy and Astrophysics |
Volume | 407 |
Issue number | 2 |
Publication status | Published - Aug 2003 |
ASJC Scopus subject areas
- Space and Planetary Science