Stark width regularities within magnesium spectral series

Abstract

The dependences of electron- and proton-impact Stark width on the upper-level ionization potential within different series of neutral magnesium spectral lines have been evaluated and discussed. Dependences similar to those previously found for the electron-impact contribution were also obtained for the proton-impact contribution to the Stark broadening parameters. The emphasis is on the fine-structure influence on the studied Stark parameter dependences. The relations found can be used in both cases for the prediction of new Stark broadening data, thus avoiding much more complicated procedures. © 2011 The Authors Monthly Notices of the Royal Astronomical Society © 2011 RAS.