July 11-15, 2011
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Abstract

p-mode evolution as a function of rotation

Fernando Pena (ICA/Saint Mary's University)

Robert Deupree ICA/Saint Mary's University

Pulsation frequencies for low to mid order p-modes for 2D models of rapidly rotating stars have been computed. The mode splitting between nonazimuthal modes provides information about the interior angular momentum distribution, but once the azimuthal mode splitting becomes as large as the large separation, mode identification becomes difficult. Tracking down the evolution of the particular mode frequency as a function of rotational velocity from nearly break-up speeds to zero velocity allow to label the modes at fast rotation and potentiality one can use this connection as a discriminant for mode identification.
(to be confirmed by the SOC)