As pointed out in #488, the Stark broadening parameter is in a unit of '(sNe)^-1' but was mistakenly not multiplied by Ne (electron number density). Also, a temperature-dependent factor (`(T/10000.)**(1/6)`; c.f. https://ui.adsabs.harvard.edu/abs/2006AIPC..874...35G/abstract) was forgotten. I fixed them.
As pointed out in #488, the Stark broadening parameter is in a unit of '(sNe)^-1' but was mistakenly not multiplied by Ne (electron number density). Also, a temperature-dependent factor (`(T/10000.)**(1/6)`; c.f. https://ui.adsabs.harvard.edu/abs/2006AIPC..874...35G/abstract) was forgotten. I fixed them.