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28 papers · 2 filters
Detection of warm water vapour in Taurus protoplanetary discs by Herschel
P. Riviere-Marichalar, F. Ménard, W. F. Thi +12
Line spectra of 68 Taurus T Tauri stars were obtained with the Herschel-PACS (Photodetector Array Camera & Spectrometer) instrument as part of the GASPS (Gas Evolution in Protoplan…
Two Remarkable Spectroscopic Categories of Young O Stars from the VLT-FLAMES Tarantula Survey
Nolan R. Walborn, Hugues Sana, William D. Taylor +2
The spectral and spatial characteristics of two special categories of O stars found in the VFTS dataset are presented. One of them comprises very rapid rotators, including several…
The VLT-FLAMES Tarantula Survey: The fastest rotating O-type star and shortest period LMC pulsar - remnants of a supernova disrupted binary?
P. L. Dufton, P. R. Dunstall, C. J. Evans +12
We present a spectroscopic analysis of an extremely rapidly rotating late O-type star, VFTS102, observed during a spectroscopic survey of 30 Doradus. VFTS102 has a projected rotati…
UCAC3 Proper Motion Survey. II. Discovery Of New Proper Motion Stars In UCAC3 With 0.40" yr^-1 > mu >= 0.18" yr^-1 Between Declinations -47 deg and 00 deg
C. T. Finch, N. Zacharias, M. R. Boyd +2
We present 474 new proper motion stellar systems in the southern sky having no previously known components, with 0.40" yr^-1 > mu >= 0.18" yr^-1 between declinations -47 deg and 00…
Gas modelling in the disc of HD 163296
I. Tilling, P. Woitke, G. Meeus +19
We present detailed model fits to observations of the disc around the Herbig Ae star HD 163296. This well-studied object has an age of ~ 4 Myr, with evidence of a circumstellar dis…
First visual orbit for the prototypical colliding-wind binary WR 140
J. D. Monnier, Ming Zhao, E. Pedretti +14
Wolf-Rayet stars represent one of the final stages of massive stellar evolution. Relatively little is known about this short-lived phase and we currently lack reliable mass, distan…