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Multi-site, multi-technique survey of Gamma Doradus candidates
P. Mathias, J. -M. Le Contel, E. Chapellier +14
We present the first results of a 2-year high-resolution spectroscopy campaign of 59 candidate Gamma Doradus stars which were mainly discovered from the HIPPARCOS astrometric missi…
A photometric monitoring of bright high-amplitude delta Scuti stars. II. Period updates for seven stars
A. Derekas, L. L. Kiss, P. Szekely +10
We present new photometric data for seven high-amplitude delta Scuti stars. The observations were acquired between 1996 and 2002, mostly in the Johnson photometric system. For one…
The multiperiodicity of the Doradus stars HD 224945 and HD 224638 as detected from a multisite campaign
E. Poretti, C. Koen, M. Bossi +8
We discuss new photometric data collected on the gamma Dor variables HD 224945 and HD 224638. Multiperiodicity was detected in both stars, thanks to the clear spectral window of a…
The Gamma Doradus variables, a new class of pulsating stars. The case of HD 224945
E. Poretti, C. Akan, M. Bossi +3
A multisite campaign involving five observatories allowed us to solve the light curve of the Gamma Doradus star HD 224945. The multiperiodic content, the high frequency term at 3.0…