R-matrix electron-impact excitation data for the Li-like iso-electronic sequence including Auger and radiation damping

Details R-matrix electron-impact excitation data for the Li-like iso-electronic sequence including Auger and radiation damping R-matrix electron-impact excitation data for the Li-like iso-electronic sequence including Auger and radiation damping

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011a%26a...528a..69l&link_type=abstract

Astronomy & Astrophysics, Volume 528, id.A69

Astronomy and Astrophysics

Astrophysics

6

Atomic Data, Atomic Processes, Plasmas

Scientific paper

We present results for the electron-impact excitation of all Li-like ions from Be+ to Kr33+ which we obtained using the radiation- and Auger-damped intermediate-coupling frame transformation R-matrix approach. We have included both valence- and core-electron excitations up to the 1s25l and 1s2l4l' levels, respectively. A detailed comparison of the target structure and collision data has been made for four specific ions (O5+, Ar15+, Fe23+ and Kr33+) spanning the sequence so as to assess the accuracy for the entire sequence. Effective collision strengths (Υs) are presented at temperatures ranging from 2 × 102(z + 1)2 K to 2 × 106(z + 1)2 K (where z is the residual charge of the ions, i.e. Z - 3). Detailed comparisons for the Υs are made with the results of previous calculations for several ions which span the sequence. The radiation and Auger damping effects were explored for core-excitations along the iso-electronic sequence. Furthermore, we examined the iso-electronic trends of effective collision strengths as a function of temperature.
These data are made available in the archives of APAP via http://www.apap-network.org, OPEN-ADAS via http://open.adas.ac.uk, as well as anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/528/A69

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