EDP Sciences
Free Access
Volume 401, Number 3, April III 2003
Page(s) 1077 - 1086
Section Stellar atmospheres
DOI https://doi.org/10.1051/0004-6361:20030182

A&A 401, 1077-1086 (2003)
DOI: 10.1051/0004-6361:20030182

Evidence of the $\gamma$ Doradus nature for a group of candidates

S. Martín, M. Bossi and F. M. Zerbi

INAF-Osservatorio Astronomico di Brera, via Bianchi 46, 23807 Merate (LC), Italy
    e-mail: bossi@merate.mi.astro.it; zerbi@merate.mi.astro.it
(Received 16 October 2002 / Accepted 31 January 2003 )

We present in this paper new $uvby\beta$ photometry of eight stars suspected to be $\gamma$ Doradus variables according to Handler & Kaye (2000). The new observational material has been analyzed and previously published data re-analyzed by means of an objective period search technique, based on the least-squares algorithm, called Multifre (Bossi & Nuñez 2002). We found evidence for the inclusion of seven of these stars in the list of recognized $\gamma$ Doradus variables.

Key words: stars: variables: general -- stars: oscillations -- stars: fundamental parameters -- techniques: photometric

Offprint request: S. Martín, susana@merate.mi.astro.it

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