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The Stark-induced shift and asymmetry, the so-called pressure shift (PS) of$H_\alpha$ and $H_\beta$ Balmer lines in spectra of DA white dwarfs (WDs), asmasking effects in measurements of the gravitational red shift in WDs, havebeen examined in detail. The results are compared with our earlier ones frombefore a quarter of a century (Grabowski et al. 1987, hereafter ApJ'87; Madejand Grabowski 1990). In these earlier papers, as a dominant constituent of theBalmer-line-profiles, the standard, symmetrical Stark line profiles, shifted asthe whole by PS-effect, were applied to all spectrally active layers of the WDatmosphere. At present, in each of the WD layers, the Stark-line-profiles(especially of $H_\beta$) are immanently asymmetrical and shifted due to theeffects of strong inhomogeneity of the perturbing fields in plasma. Tocalculate the Stark line-profiles in successive layers of the WD atmosphere weused the modified Full Computer Simulation Method (mFCSM), able to takeadequately into account the complexity of local elementary quantum processes inplasma. In the case of the $H_\alpha$ line, the present value of Stark-inducedshift of the synthetic $H_\alpha$ line-profile is about twice smaller than theprevious one (ApJ'87) and it is negligible in comparison with the gravitationalred shift. In the case of the $H_\beta$ line, the present value ofStark-induced shift of the synthetic $H_\beta$ line-profile is about twicelarger than the previous one. The source of this extra shift is the asymmetryof $H_\beta$ peaks.

Pressure Shift and Gravitational Red Shift of Balmer Lines in White Dwarfs. Rediscussion