Atomic data from the IRON project. LXVII. Electron impact excitation of Fe XIII
Abstract
A new R-matrix calculation of rate coefficients for electron collisional excitation of Fe XIII is presented and compared to recent calculations of comparable complexity. At temperatures at which Fe12+ is typically found in the solar corona, the present results, which use the intermediate coupling frame transformation method, show significant differences compared to some earlier work. We use a large configuration interaction calculation with extensive correlation to assess the accuracy of our and earlier workers' scattering targets.
Full Tables 7 and 8 are only available in full 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/511/A78- Publication:
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Astronomy and Astrophysics
- Pub Date:
- February 2010
- DOI:
- 10.1051/0004-6361/200912689
- Bibcode:
- 2010A&A...511A..78S
- Keywords:
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- atomic data;
- Sun: corona;
- techniques: spectroscopic