First AMBER/VLTI Observations of Hot Massive Stars
/ Authors
R. Petrov, F. Millour, F. Millour, O. Chesneau, G. Weigelt, D. Bonneau, P. Stee, S. Kraus, D. Mourard, A. Meilland
and 42 more authors
M. Vannier, F. Malbet, F. Lisi, P. Antonelli, P. Kern, U. Beckmann, S. Lagarde, K. Perraut, S. Gennari, E. Coarer, T. Driebe, M. Accardo, S. Robbe-Dubois, K. Ohnaka, S. Busoni, A. Roussel, G. Zins, J. Behrend, D. Ferruzi, Y. Bresson, G. Duvert, E. Nussbaum, A. Marconi, P. Feautrier, M. Dugu'e, A. Chelli, E. Tatulli, M. Heininger, A. Delboulb'e, S. Bonhomme, D. Schertl, L. Testi, P. Mathias, J. Monin, L. Glück, K. Hofmann, P. Salinari, P. Puget, J. Clausse, D. Fraix-Burnet, R. Foy, A. Isella
/ Abstract
AMBER is the first near infrared focal instrument of the VLTI. It combines three telescopes and produces spectrally resolved interferometric measures. This paper discusses some preliminary results of the first scientific observations of AMBER with three Unit Telescopes at medium (1500) and high (12000) spectral resolution. We derive a first set of constraints on the structure of the circumstellar material around the Wolf Rayet γ2 Velorum and the LBV η Carinae.
Journal: arXiv: Astrophysics