Answers are grounded in this paper and cite their sources.
We have measured the central part of the Balmer H_β or D_β line in similar stabilized arc plasmas, but of different chemical compositions. We have found an ion-motion effect which appears to scale with the inverse square root of the reduced mass of the radiator-perturber system and which, for H_β at least, essentially removes one of the largest remaining discrepancies between experiment and Stark-broadening theory.
No takes yet. Share an insight, caveat, or question.
Kelleher et al. (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: