Paper:	Latitude Distribution of Nonradial Pulsations in Rapidly Rotating B Stars
Volume:	310, Variable Stars in the Local Group (IAU Colloquium 193)
Page:	204
Authors:	Jankov, S.; Mathias, P.; Domiciano de Souza, A., Jr.; Uytterhoeven, K.; Aerts, C.
Abstract:	We present a method for the analysis of latitude distribution associated with temperature and/or velocity perturbations of the stellar surface due to non-radial pulsation (NRP) modes in rapidly rotating B stars. The technique is applied together with Fourier Doppler Imaging (FDI) to high resolution and high signal-to-noise ratio spectroscopic observations of ε Per. The main advantage of this approach is that it decomposed complex multi-periodic line profile variations into single components, allowing the detailed analysis of each mode seperately. We study the 10.6-d−1 frequency that is particularly important for modal analysis of non-radial pulsations in the star.

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