Atomic Oscillator Strengths and Excitation Potentials
Open Access
- 1 October 1955
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 115 (5) , 571-574
- https://doi.org/10.1093/mnras/115.5.571
Abstract
The ratio between calculated and observed oscillator strengths is discussed for atoms of the astrophysically important iron group (Ti to Ni). The ratio is found to vary systematically and very greatly with excitation potential, being high for small E.P. Reasons are advanced for believing that observed values may be preferred to calculated values. The data lead to the surprising result that there is a general increase of true oscillator strength (factor of 1000 or more) for observed lines as E.P. increases by 3 or 4 volts.Keywords
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