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Panduro, J.P. Berger, J. Ramos, J. Sanchez-Bermudez, J. Woillez, K. Perraut, L. Jochum, L. Jocou, L. Pallanca, M. Haug, M. Horrobin, M. Kulas, M. Lippa, M. Sch\\\"oller, M. Wiest, M. Wittkowski, N. Anugu, N. Blind, O. Pfuhl, P. F\\'edou, P. Garcia, P. Kervella, P. L\\`ena, R. Abuter, R. Dembet, R. Garcia Lopez, R. Genzel, R.-R. Rohloff, S. Gillessen, S. Hippler, S. Lacour, S. Rabien, S. Scheithauer, S. Yazici, Th. Henning, T. Ott, T. Paumard, V. Lapeyr\\`ere, W. Brandner, W. de Wit, X. Haubois, Y. Cl\\'enet, Y. Kok, Z. Hubert","submitted_at":"2017-05-05T18:07:18Z","abstract_excerpt":"We observe the HMXB BP Cru using interferometry in the near-infrared K band with VLTI/GRAVITY. Continuum visibilities are at most partially resolved, consistent with the predicted size of the hypergiant. 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