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Paper detail

The WR 140 periastron passage 2009: first results from MONS and other optical sources

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.

preprint2011arXivOpen access
R. FahedA. F. J. MoffatJ. ZorecT. EversbergA. N. ChenéF. AlvesW. ArnoldT. BergmannL. F. Gouveia CarreiraF. Marques DiasA. FernandoJ. Sanchez GallegoT. HungerJ. H. KnapenR. LeadbeaterT. MorelG. RauwN. ReineckeJ. RibeiroN. RomeoE. M. dos SantosL. SchanneO. StahlBa. StoberBe. StoberN. G. Correia ViegasK. VollmannM. F. CorcoranS. M. DoughertyJ. M. PittardA. M. T. PollockP. M. Williams
astro-ph.SR
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Open access32 authors1 topic
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R. FahedA. F. J. MoffatJ. ZorecT. EversbergA. N. ChenéF. AlvesW. ArnoldT. BergmannL. F. Gouveia CarreiraF. Marques DiasA. FernandoJ. Sanchez GallegoT. HungerJ. H. KnapenR. LeadbeaterT. MorelG. RauwN. ReineckeJ. RibeiroN. RomeoE. M. dos SantosL. SchanneO. StahlBa. StoberBe. StoberN. G. Correia ViegasK. VollmannM. F. CorcoranS. M. DoughertyJ. M. PittardA. M. T. PollockP. M. Williams

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