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Resolved magnetically split lines as enhanced pulsation diagnostics in roAp stars
Published online by Cambridge University Press: 13 January 2006
Abstract
We show that in rapidly oscillating Ap stars with resolved magnetically split lines, different pulsation behaviours can be expected for the π and σ line components. We outline the prospects that this opens for diagnosis of the pulsation of these stars. We present a first application to the strongly magnetic star HD 166473. While the predicted effect could not be observed (possibly due to the low pulsation amplitude), marginal detection of variation of the mean magnetic field modulus with the pulsation frequency is achieved.
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- © EAS, EDP Sciences, 2005
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