IRON Project XXVII. Fe IV collision strengths (Zhang+ 1997)

Details IRON Project XXVII. Fe IV collision strengths (Zhang+ 1997) IRON Project XXVII. Fe IV collision strengths (Zhang+ 1997)

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997ycat..41260373z&link_type=abstract

VizieR On-line Data Catalog: J/A+AS/126/373. Originally published in: 1997A&AS..126..373Z

Physics

Atomic Physics

Atomic Physics

Scientific paper

Collision strengths and maxwellian-averaged rate coefficients have been calculated for 8771 non-vanishing transitions among 140 fine structure levels, dominated by the configurations 3d5, 3d44s, and 3d44p in Fe IV. Collision strengths are calculated using the R-matrix method with a 49 term close-coupling target expansion for electron energies up to 15 rydbergs. Rate coefficients are tabulated for a wide range of temperatures in which Fe IV is abundant in plasma sources. A brief discussion of the calculations and sample results are given. The present rates for Fe IV are expected to find applications in spectral diagnostics of a variety of astrophysical sources.
(1 data file).

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