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Young open clusters in the Milky Way and Small Magellanic Cloud
Christophe Martayan
NGC6611, Trumpler 14, Trumpler 15, Trumpler 16, Collinder 232 are very young open clusters located in star-formation regions of the Eagle Nebula or the Carina in the MW, and NGC346…
Early-type PMS and MS objects in M16 and the Carina star-forming regions
Christophe Martayan, Michele Floquet, Yves Fremat +4
Thanks to a variety of pertinent wide-angle facilities (WFI-slitless mode, VLT-FLAMES (Pasquini et al. 2002), SPITZER, 2MASS) it is possible to comprehensively study the nature of…
A slitless spectroscopic survey for Halpha emission-line objects in SMC clusters
Christophe Martayan, Dietrich Baade, Juan Fabregat
This paper checks on the roles of metallicity and evolutionary age in the appearance of the so-called Be phenomenon. Slitless CCD spectra were obtained covering the bulk of the Sma…
More on pulsating B-type stars in the Magellanic Clouds
P. D. Diago, J. Gutiérrez-Soto, J. Fabregat +1
We present here the results of our research for B-type pulsators in low metallicity environments, searching for short-term periodic variability in a large sample of B and Be stars…