Issue |
Astron. Astrophys. Suppl. Ser.
Volume 119, Number 3, November I 1996
|
|
---|---|---|
Page(s) | 523 - 528 | |
DOI | https://doi.org/10.1051/aas:1996264 | |
Published online | 15 November 1996 |
Atomic data from the Iron Project. XVIII. Electron impact excitation collision strengths and rate coefficients for Fe III
Department of Astronomy, The Ohio State University, Columbus, OH 43210, U.S.A.
Received:
17
January
1996
Accepted:
27
February
1996
Collision strengths and maxwellian averaged rate coefficients
have been calculated for 23 871
transitions among 219 fine structure levels, dominated by
configurations , and
in Fe III.
Collision strengths are calculated
using the R-matrix method with a 83 term
close-coupling target expansion and for electron energies up to 10
rydbergs.
Rate coefficients are tabulated at a wide range of temperatures
at which Fe III is abundant in plasma sources.
A brief discussion of the calculations and sample results are given.
The present rates for Fe III are
expected to find applications in
spectral diagnostics of a variety of astrophysical sources.
Key words:
© European Southern Observatory (ESO), 1996