Volume 394, Number 2, November I 2002
|Page(s)||753 - 762|
|Section||Catalogs and data|
|Published online||15 October 2002|
Atomic data from the IRON Project
LI. Electron impact excitation of Fe IX
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, UK
2 LUTH (FRE 2462 associée au CNRS et à l'Université Paris 7), Observatoire de Paris, 92195 Meudon, France
3 Laboratoire PALMS (UMR 6627 du CNRS – Université de Rennes 1), Équipe SIMPA, Campus de Beaulieu, Université de Rennes 1, 35042 Rennes Cedex, France
Corresponding author: P. J. Storey, PJS@star.ucl.ac.uk
Accepted: 23 July 2002
We calculate collision strengths and thermally averaged collision strengths for electron excitation between the one hundred and forty energetically lowest levels of Fe8+. The scattering target is more elaborate than in any earlier work and large increases are found in the excitation rates among the levels of the 3s23p53d electron configuration due to resonance series that have not been considered previously. The implications for solar and stellar spectroscopy have been discussed elsewhere (Storey & Zeippen [CITE]). We correct some errors that were made in generating the figures given in that paper and present corrected versions.
Key words: Sun: general / atomic data / Sun: UV radiation
© ESO, 2002
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