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.; CURÉ,M; GRANADA, A.

Foz do Iguazu

Workshop; ESO Workshop: “Circumstellar dynamics at high resolution”; 2012

European Southern Observatory

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