A new version of the moment method, optimized for mode identification in multiperiodic stars

Details A new version of the moment method, optimized for mode identification in multiperiodic stars A new version of the moment method, optimized for mode identification in multiperiodic stars

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aspc..292..365b&link_type=abstract

Interplay of Periodic, Cyclic and Stochastic Variability in Selected Areas of the H-R Diagram. Edited by C. Sterken, ASP Conf. S

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We present a numerical version of the moment method for the identification of non-radial pulsation modes. The new version requires less computation time than the previous one, allowing to consider all the information contained in the first three moments of a multiperiodic star and to identify multiple modes simultaneously. This, together with the use of a new discriminant which considers the moments calculated at each time of observation, increases the feasibility and the accuracy of the mode identification for multiperiodic stars. Moreover, the technique is extended to rotating pulsating stars. We apply the new version to three B stars showing multiperiodicity.

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