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Imaging "Pinwheel"nebulae with optical long-baseline interferometry
Florentin Millour, Thomas Driebe, José Groh +4
Dusty Wolf-Rayet stars are few but remarkable in terms of dust production rates (up to one millionth of solar mass per year). Infrared excesses associated to mass-loss are found in…
Images of unclassified and supergiant B[e] stars disks with interferometry
Florentin Millour, Anthony Meilland, Olivier Chesneau +5
B[e] stars are among the most peculiar objects in the sky. This spectral type, characterised by allowed and forbidden emission lines, and a large infrared excess, does not represen…
Fast ray-tracing algorithm for circumstellar structures (FRACS). II. Disc parameters of the B[e] supergiant CPD-57° 2874 from VLTI/MIDI data
Armando Domiciano De Souza, Philippe Bendjoya, Gilles Niccolini +6
B[e] supergiants are luminous, massive post-main sequence stars exhibiting non-spherical winds, forbidden lines, and hot dust in a disc-like structure. The physical properties of t…
Detection of high-velocity material from the wind-wind collision zone of Eta Carinae across the 2009.0 periastron passage
Jose H. Groh, Krister E. Nielsen, Augusto Damineli +15
We report near-IR spectroscopic observations of the Eta Carinae massive binary system during 2008-2009 using VLT/CRIRES. We detect a strong, broad absorption wing in He I 10833 ext…