A&A Supplement series, Vol. 121, January 1997, 187 - 190
Received February 23; accepted May 20, 1996
A. Burgess
- M.C. Chidichimo
- J.A.
Tully
Send offprint request: A. Burgess
Department of Applied Mathematics and Theoretical Physics,
Silver Street, Cambridge CB3 9EW, UK
Department of Applied Mathematics, University of Waterloo,
Waterloo, Ontario, Canada N2L 3G1
D‚partement G.D. Cassini, Observatoire de la Côte
d'Azur, BP. 4229,
06304 Nice Cedex 4, France
The program developed by Burgess for spline fitting and interpolating
collision strengths can also be used to do isoelectronic fits. Instead of
treating 
or 
one inputs an arbitrary
quantity A(Z)
that is a function of nuclear charge number Z. In this way isoelectronic
atomic data can be visualised and compacted in an easy manner which allows
for accurate interpolation along a sequence. Four illustrative applications
are provided.
keywords: isoelectronic sequence -- atomic data -- spline interpolation