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Astron. Astrophys. 344, L41-L44 (1999)


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Letter to the Editor

Amplitude investigation of [FORMULA] Scuti variables in open clusters

Z.P. Li 1 and E. Michel 2

1 Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100012, P.R. China
2 Observatoire de Paris, DASGAL, URA CNRS 335, F-92195 Meudon, France

Received 22 July 1998 / Accepted 8 March 1999

Abstract

We report here the results of a statistical analysis of 28 [FORMULA] Scuti stars from five open clusters, [FORMULA] Persei, Pleiades, Hyades, Praesepe and Coma. These [FORMULA] Scuti variables, most of which are on the main sequence, tend to show a positive correlation between oscillation amplitude and absolute luminosity. No correlation is found between amplitude and effective temperature.

Key words: Galaxy: open clusters and associations: general – stars: variables: ffi Sct – stars: statistics – stars: oscillations – stars: fundamental parameters


© European Southern Observatory (ESO) 1999

Online publication: March 18, 1999

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