Spectroscopic follow-up of the colliding-wind binary WR 140 during the 2009 January periastron passage
- Fahed, Rémi
- Moffat, Anthony F J
- Zorec, Juan
- Eversberg, Thomas
- Chené, André*-Nicolas
- 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
- Rauw, Grégor
- 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
DOIAbstract
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
Add to ORKG