Observational Constraints on the Disk Size and Kinematics of HD 327083*

ANDRUCHOW, I.; CIDALE, L. S.; CHESNEAU, O.; KANAAN, S.; BORGES FERNANDES, M.; KRAUS, M.; ARIAS, M.L.; TORRES, A.F.; CURE, M.; GRANADA, A.

Foz do Iguacu

Workshop; Circumstellar Dynamics at High Resolution.; 2012

ESP

The existence of dust around hot, massive and luminous objects, such asB[e] supergiants, is still not well understood. One possible scenario islinked to the presence of a high density and low expansion velocityequatorial disk, which would harbor neutral and low ionized gas anddust. However, the formation of a stable disk is physically challenging.A possible answer would be the detection and channeling of the massejected towards the equatorial plane of the supergiant by a faintcompanion. In this work, we present VLTI/MIDI high angular resolutionobservations and GEMINI/PHOENIX infrared spectra to describe the gas anddust environments around the galactic B[e] supergiant HD 327083, whichis suspected to have a F-type companion.