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We are investigating the circumstellar material for a sample of B[e] starsusing high spectral resolution data taken in the optical and near-infraredregions with ESO/FEROS and ESO/CRIRES spectrographs, respectively. B[e] starsare surrounded by dense disks of still unknown origin. While optical emissionlines from [O I] and [Ca II] reflect the disk conditions close to the star (fewstellar radii), the near-infrared data, especially the CO band emission, mirrorthe characteristics in the molecular part of the disk farther away from thestar (several AU). Based on our high resolution spectroscopic data, we seek toderive the density and temperature structure of the disks, as well as theirkinematics. This will allow us to obtain a better understanding of theirstructure, formation history and evolution. Here we present our preliminaryresults.

Unveiling the structure and kinematics of B[e] stars' disks from FEROS and CRIRES spectra