¹ Landessternwarte Königstuhl, D-69117 Heidelberg, Germany
² European Southern Observatory, Karl-Schwarzschild-Str. 2, D-8574 Garching bei München, Germany
³ Astronomical Institute, Academy of Sciences, CZ-25165 Ondrejov, Czech Republic

Astero-oscillometry is presented as a new method for deriving stellar parameters on the basis of a physical modeling of line profile variability (lpv) caused by nonradial pulsation (nrp). First applications to rapidly rotating B-type stars show that the method is able to yield reasonable stellar parameters. The radii are systematically smaller compared to those derived by conventional methods. This could be attributed to possible effects of rapid rotation on stellar evolution. Since the method requires only one or a few pulsation modes to be excited, it is ideally suited to investigate early-type stars.

to be published in ASP Conf. Ser.: IAU Coll. 185: Radial and Nonradial Pulsations as Probes of Stellar Physics, Editors: Conny Aerts, Tim Bedding, Joergen Christensen-Dalsgaard

Preprints from triviniu@eso.org
or on the web at http://www.eso.org/~triviniu/Leuven.html