Stark Profile Calculations for the Hβ Line of Hydrogen.

Extensive numerical calculations of the electron and ion broadening of the H line are presented, taking into account the electron impact broadening of both the upper and the lower levels and using modified Holtsmark ion field-strength distribution functions of Mozer and 13aranger. Comparison with earlier calculations shows that errors in the profiles due to neglecting the impact broadening of the lower levels and to using Ecker's approximate distribution functions are usually less than 10 per cent in the line core and negligible in the wing, where asymptotic formulae are applicable.