Amplitude investigation of δ-Scuti stars in open clusters taking into account the effect of fast rotation on photometric parameters

Details Amplitude investigation of δ-Scuti stars in open clusters taking into account the effect of fast rotation on photometric parameters Amplitude investigation of δ-Scuti stars in open clusters taking into account the effect of fast rotation on photometric parameters

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.464..461s&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,

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Delta Scuti Stars, Amplitudes, Rotation, Photometric Parameters, Correlation

Scientific paper

A better understanding and description of the stellar core overshooting process would constitute a significant step toward a more precise determination of stellar ages. δ-Scuti stars are considered to be a promising source of information on this crucial hydrodynamical process. The investigation of their pulsational behaviour within the instability strip has motivated several surveys and statistical studies during the last decades. In particular, several attempts were made to establish clear correlations between the observed amplitudes of pulsation and other parameters characterizing the stars, like the absolute magnitude or the mean period. Here we discuss how this kind of studies can take advantage of recent works on δ-Scuti stars in open clusters and proposed methods to better take into account the effect of fast rotation. An illustration is given with stars belonging to the Praesepe Cluster.

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