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3 papers

astro-ph.SR2010

Evolution of massive Be and Oe stars at low metallicity towards the Long Gamma Ray bursts\footnote{Based on ESO runs 069.D-0275(A), 072.D-0245(A) and (C).}

Christophe Martayan, Jean Zorec, Dietrich Baade +3

Several studies have shown recently that at low metallicity B-type stars rotate faster than in environments of high metallicity. This is a typical case in the SMC. As a consequence…

astro-ph.SR2010

X-shooter, NACO, and AMBER observations of the LBV Pistol Star \footnote{Based on ESO runs 85.D-0182A, 085.D-0625AC}

Christophe Martayan, Ronny Blomme, Jean-Baptiste Le Bouquin +15

We present multi-instruments and multi-wavelengths observations of the famous LBV star Pistol Star. These observations are part of a larger program about early O stars at different…

astro-ph.SR2009

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…