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High-angular resolution observations of the Pistol Star
Document de travail

High-angular resolution observations of the Pistol Star

Christophe Martayan, Ronny Blomme, Jean-Baptiste Le Bouquin, Antoine Merand, Guillaume Montagnier, Fernando Selman, Julien Girard, Andrew Fox, Dietrich Baade, Yves Fremat, …

Résumé

stars: binaries stars: circumstellar matter stars: early-type stars: mass loss
First results of near-IR adaptive optics (AO)-assisted imaging, interferometry, and spectroscopy of this Luminous Blue Variable (LBV) are presented. They suggest that the Pistol Star is at least double. If the association is physical, it would reinforce questions concerning the importance of multiplicity for the formation and evolution of extremely massive stars.\footnote{based on ESO runs 085.D-0182(A), 085.D-0625(A, C)}

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