000002236 001__ 2236
000002236 005__ 20160701171701.0
000002236 0247_ $$2DOI$$a10.1111/j.1365-2966.2011.19035.x
000002236 037__ $$aASTROimport-393
000002236 100__ $$aFahed, R.
000002236 245__ $$aSpectroscopy of the archetype colliding-wind binary WR 140 during the 2009 January periastron passage
000002236 260__ $$c2011
000002236 520__ $$aWe present the results from the spectroscopic monitoring of WR 140 (WC7pd + O5.5fc) during its latest periastron passage in 2009 January. The observational campaign consisted of a constructive collaboration between amateur and professional astronomers. It took place at six locations, including Teide Observatory, Observatoire de Haute Provence, Dominion Astrophysical Observatory and Observatoire du Mont Mégantic. WR 140 is known as the archetype of colliding-wind binaries and it has a relatively long period (?8 yr) and high eccentricity (?0.9). We provide updated values for the orbital parameters, new estimates for the WR and O star masses and new constraints on the mass-loss rates and colliding-wind geometry. 
000002236 700__ $$a Moffat, A. F. J.
000002236 700__ $$a Zorec, J.
000002236 700__ $$a Eversberg, T.
000002236 700__ $$a Chené, A. N.
000002236 700__ $$a Alves, F.
000002236 700__ $$a Arnold, W.
000002236 700__ $$a Bergmann, T.
000002236 700__ $$a Corcoran, M. F.
000002236 700__ $$a Correia Viegas, N. G.
000002236 700__ $$a Dougherty, S. M.
000002236 700__ $$a Fernando, A.
000002236 700__ $$a Frémat, Y.
000002236 700__ $$a Gouveia Carreira, L. F.
000002236 700__ $$a Hunger, T.
000002236 700__ $$a Knapen, J. H.
000002236 700__ $$a Leadbeater, R.
000002236 700__ $$a Marques Dias, F.
000002236 700__ $$a Martayan, C.
000002236 700__ $$a Morel, T.
000002236 700__ $$a Pittard, J. M.
000002236 700__ $$a Pollock, A. M. T.
000002236 700__ $$a Rauw, G.
000002236 700__ $$a Reinecke, N.
000002236 700__ $$a Ribeiro, J.
000002236 700__ $$a Romeo, N.
000002236 700__ $$a Sánchez-Gallego, J. R.
000002236 700__ $$a Dos Santos, E. M.
000002236 700__ $$a Schanne, L.
000002236 700__ $$a Stahl, O.
000002236 700__ $$a Stober, B.
000002236 700__ $$a Stober, B.
000002236 700__ $$a Vollmann, K.
000002236 700__ $$a Williams, P. M.
000002236 773__ $$c2-13$$i1$$pMonthly Notices of the Royal Astronomical Society$$v418$$y2011
000002236 85642 $$ahttp://esoads.eso.org/abs/2011MNRAS.418....2F
000002236 905__ $$apublished in
000002236 980__ $$aREFERD