A model for pulsations in roAp stars

Details A model for pulsations in roAp stars A model for pulsations in roAp stars

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..367b&link_type=abstract

In: Proceedings of the SOHO 10/GONG 2000 Workshop: Helio- and asteroseismology at the dawn of the millennium, 2-6 October 2000,

Physics

Ap Stars, Oblique Pulsators

Scientific paper

The oblique pulsator model accounts for most of the pulsation properties of the rapidly oscillating Ap (roAp) stars. It also yields predictions for observables, from which constraints on the magnetic field may be derived. The observables are relative amplitudes within multiplets in frequency spectra corresponding to individual eigenmodes. Here we propose improvements of the oblique pulsator model which consist in including effects of centrifugal distortion of the star, and using a non-perturbative treatment of the magnetic field.

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