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Martins, Fabrice 2015. Very Massive Stars in the Local Universe. Vol. 412, Issue. , p. 9.
Published online by Cambridge University Press: 12 July 2011
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.