Latitude distribution of nonradial pulsations in rapidly rotating B stars

Details Latitude distribution of nonradial pulsations in rapidly rotating B stars Latitude distribution of nonradial pulsations in rapidly rotating B stars

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..310..204j&link_type=abstract

Variable Stars in the Local Group, IAU Colloquium 193, Proceedings of the conference held 6-11 July, 2003 at Christchurch, New Z

Astronomy and Astrophysics

Astronomy

1

Scientific paper

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 ɛ 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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