ORBi: Fahed Rémi - Spectroscopic follow-up of the colliding-wind binary WR 140 during the 2009 January periastron passage

Reference : Spectroscopic follow-up of the colliding-wind binary WR 140 during the 2009 January peri...


	Document type :	Scientific congresses and symposiums : Paper published in a book
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/97141

Title :	Spectroscopic follow-up of the colliding-wind binary WR 140 during the 2009 January periastron passage
Language :	English
Author, co-author :	Fahed, Rémi [Université de Montréal, Montréal, Canada]
	Moffat, Anthony F J [Université de Montréal, Montréal, Canada]
	Zorec, Juan [Institut d'astrophysique de Paris, Paris, France]
	Eversberg, Thomas [Schnörringen Telescope Science Institute, Köln, Germany]
	Chené, André-Nicolas [Herzberg Institute of Astrophysics, Victoria, Canada]*
	Alves, Filipe [> > > >]
	Arnold, Wolfgang [> > > >]
	Bergmann, Thomas [> > > >]
	Carreira, Luis F Gouveia [> > > >]
	Dias, Filipe Marques [> > > >]
	Fernando, Alberto [> > > >]
	Gallego, José Sánchez [> > > >]
	Hunger, Thomas [> > > >]
	Knapen, Johan H [> > > >]
	Leadbeater, Robin [ > > ]
	Morel, Thierry [Université de Liège - ULg > Département d'Astrophysique, Géophysique & Océanographie (AGO) > Groupe d'Astrophysique des Hautes Energies (GAPHE) > >]
	Rauw, Grégor [Université de Liège - ULg > Département d'Astrophysique, Géophysique é Océanographie (AGO) > Groupe d'Astrophysique des Hautes Energies (GAPHE) > >]
	Reinecke, Norbert [ > > ]
	Ribeiro, José [ > > ]
	Romeo, Nando [ > > ]
	dos Santos, Eva M [ > > ]
	Schanne, Lothar [ > > ]
	Stahl, Otmar [ > > ]
	Stober, Barbara [ > > ]
	Stober, Berthold [ > > ]
	Viegas, Nelson G Correia [ > > ]
	Vollmann, Klaus [ > > ]
	Corcoran, Michael F [ > > ]
	Dougherty, Sean M [ > > ]
	Pittard, Julian M [ > > ]
	Pollock, Andy M T [ > > ]
	Williams, Peredur M [ > > ]
Publication date :	1-Jul-2011
Main document title :	Active OB stars: structure, evolution, mass loss and critical limits
Alternative title :	[en] Proceedings IAU Symposium no. 272
Editor :	Neiner, Coralie
	Wade, G.
	Meynet, G.
	Peters, G.
Pages :	501-502
On invitation :	No
Audience :	International
Keywords :	[en] binaries: general ; stars: fundamental parameters ; stars: Wolf-Rayet ; stars: winds ; outflows
Abstract :	[en] We present the results from the spectroscopic follow-up of WR140 (WC7 + O4-5) during its last periastron passage in january 2009. This object is known as the archetype of colliding wind binaries and has a relatively large period (~=8 years) and eccentricity (~=0.89). We provide updated values for the orbital parameters, new estimates for the WR and O star masses and new constraints on the mass-loss rates.
Permalink :	http://hdl.handle.net/2268/97141
DOI :	10.1017/S1743921311011173
Other URL :	http://adsabs.harvard.edu/abs/2011IAUS..272..501F

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