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Pulsating B and Be stars in the Magellanic Clouds
P. D. Diago, J. Gutiérrez-Soto, J. Fabregat +2
Stellar pulsations in main-sequence B-type stars are driven by the -mechanism due to the Fe-group opacity bump. The current models do not predict the presence of instability str…
Pulsating B and Be stars in the Magellanic Clouds
P. D. Diago, J. Gutiérrez-Soto, J. Fabregat +2
Stellar pulsations in main-sequence B-type stars are driven by the -mechanism due to the Fe-group opacity bump. The current models do not predict the presence of instability str…
The WFI Halpha spectroscopic survey
Christophe Martayan, Dietrich Baade, Juan Fabregat
This document presents the results from our spectroscopic survey of Halpha emitters in galactic and SMC open clusters with the ESO Wide Field Imager in its slitless spectroscopic m…
The Gaia satellite: a tool for Emission Line Stars and Hot Stars
Christophe Martayan, Yves Fremat, Ronny Blomme +19
The Gaia satellite will be launched at the end of 2011. It will observe at least 1 billion stars, and among them several million emission line stars and hot stars. Gaia will provid…
Radial velocities, dynamics of stars and nebulosities with GAIA and VLT-GIRAFFE
Christophe Martayan, Yves Fremat, Ronny Blomme +8
This document is divided in two parts. The first part deals with the radial velocities (RV) distributions for B-type stars and nebulosities observed with the VLT-GIRAFFE in the Lar…
ZAMS rotational velocities of Be/Oe stars and LGRBs progenitors in the Magellanic Clouds
Christophe Martayan, Jean Zorec, Yves Fremat
The Large and Small Magellanic Clouds are priviledged environments to perform tests of theoretical predictions at low metallicity on rotational velocities and stellar evolution. Ac…
Variability of B and Be stars in the LMC/SMC: binaries and pulsations
Christophe Martayan, Pascual Diago, Juan Gutiérrez-Soto +5
To study the variability of the 523 B and Be stars observed in the Magellanic clouds with the VLT-FLAMES, we cross-matched the stars of our sample with the photometric database MAC…
Early-type objects in NGC6611 and Eagle Nebula
Christophe Martayan, Michele Floquet, Anne-Marie Hubert +4
An important question about Be stars is whether Be stars are born as Be stars or not. It is necessary to observe young clusters to answer this question. Observations of stars in NG…