Paper:	Spitzer Mid-IR Spectroscopy of Wolf-Rayet Stars: the Frequent Detection of Circumstellar Dust
Volume:	353, Stellar Evolution at Low Metallicity: Mass Loss, Explosions, Cosmology
Page:	241
Authors:	Barniske, A.; Oskinova, L.; Hamann, W.-R.; Graefener, G.
Abstract:	We report recent observations with the Spitzer Space Telescope of the Wolf-Rayet stars WR102ka and WR102c, located in the vicinity of the Galactic Center. We used the short-high module of the IRS to obtain high quality mid-IR spectra. In this range from 10 – 20μm, the spectra of both stars are dominated by dust emission, partly of circumstellar origin. Dust has not been detected before around WN types stars.

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