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A spectroscopic study of southern (candidate) gamma Doradus stars. II. Detailed abundance analysis and fundamental parameters
H. Bruntt, P. De Cat, C. Aerts
The gamma Doradus stars are a recent class of variable main sequence F-type stars located on the red edge of the Cepheid instability strip. They pulsate in gravity modes, and this…
Automated supervised classification of variable stars I. Methodology
J. Debosscher, L. M. Sarro, C. Aerts +4
The fast classification of new variable stars is an important step in making them available for further research. Selection of science targets from large databases is much more eff…
Close-up of primary and secondary asteroseismic CoRoT targets and the ground-based follow-up observations
K. Uytterhoeven, E. Poretti, M. Rainer +13
To optimise the science results of the asteroseismic part of the CoRoT satellite mission a complementary simultaneous ground-based observational campaign is organised for selected…
An evolutionary study of the pulsating subdwarf B eclipsing binary PG1336-018 (NY Vir)
H. Hu, G. Nelemans, R. Østensen +3
The formation of subdwarf B (sdB) stars is not well understood within the current framework of stellar single and binary evolution. In this study, we focus on the formation and evo…
An asteroseismic study of the beta Cephei star theta Ophiuchi: constraints on global stellar parameters and core overshooting
M. Briquet, T. Morel, A. Thoul +5
We present a seismic study of the beta Cephei star theta Ophiuchi. Our analysis is based on the observation of one radial mode, one rotationally split l = 1 triplet and three compo…
On the co-existence of chemically peculiar Bp stars, slowly pulsating B stars and constant B stars in the same part of the H-R diagram
M. Briquet, S. Hubrig, P. De Cat +3
Aims. In order to better model massive B-type stars, we need to understand the physical processes taking place in slowly pulsating B (SPB) stars, chemically peculiar Bp stars, and…