Imaging “Pinwheel” nebulae with optical long-baseline interferometry

  title={Imaging “Pinwheel” nebulae with optical long-baseline interferometry},
  author={F. Millour and Thomas Driebe and Jose H Groh and Olivier Chesneau and Gerd Weigelt and Adriane Liermann and Anthony Meilland},
  journal={Proceedings of the International Astronomical Union},
  pages={408 - 409}
Abstract Dusty Wolf-Rayet stars are few but remarkable in terms of dust production rates (up to Ṁ = 10−6 M⊙/yr). Infrared excesses associated to mass-loss are found in the sub-types WC8 and WC9. Few WC9d stars are hosting a “pinwheel” nebula, indirect evidence of a companion star around the primary. While few other WC9d stars have a dust shell which has been barely resolved so far, the available angular resolution offered by single telescopes is insufficient to confirm if they also host… 


VLTI/AMBER unveils a possible dusty pinwheel nebula in WR118
Most Wolf-Rayet stars (WR) of WC9 sub-type exhibit a dusty circumstellar envelope, but it is still a matter of debate how dust can form in their harsh environment. In a few cases, a pinwheel-like
Speckle interferometry and radiative transfer modelling of the Wolf-Rayet star WR 118
WR 118 is a highly evolved Wolf-Rayet star of the WC10 subtype surrounded by a permanent dust shell absorbing and re-emitting in the infrared a considerable fraction of the stellar luminosity. We
A binary engine fuelling HD87643' s complex circumstellar environment, using AMBER/VLTI
Context. The star HD 87643, exhibiting the "B[e] phenomenon", has one of the most extreme infrared excesses for this object class. It harbours a large amount of both hot and cold dust, and is
AMBER, the near-infrared spectro-interferometric three-telescope VLTI instrument
Context: Optical long-baseline interferometry is moving a crucial step forward with the advent of general-user scientific instruments that equip large aperture and hectometric baseline facilities,