The WR 140 periastron passage 2009: first results from MONS and other optical sources
Solar and Stellar Astrophysics
2015-03-17 v1
Abstract
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.
Keywords
Cite
@article{arxiv.1101.1430,
title = {The WR 140 periastron passage 2009: first results from MONS and other optical sources},
author = {R. Fahed and A. F. J. Moffat and J. Zorec and T. Eversberg and A. N. Chené and F. Alves and W. Arnold and T. Bergmann and L. F. Gouveia Carreira and F. Marques Dias and A. Fernando and J. Sanchez Gallego and T. Hunger and J. H. Knapen and R. Leadbeater and T. Morel and G. Rauw and N. Reinecke and J. Ribeiro and N. Romeo and E. M. dos Santos and L. Schanne and O. Stahl and Ba. Stober and Be. Stober and N. G. Correia Viegas and K. Vollmann and M. F. Corcoran and S. M. Dougherty and J. M. Pittard and A. M. T. Pollock and P. M. Williams},
journal= {arXiv preprint arXiv:1101.1430},
year = {2015}
}
Comments
5 pages, 5 figures, Published in proceedings of "Stellar Winds in Interaction", editors T. Eversberg and J.H. Knapen. Full proceedings volume is available on http://www.stsci.de/pdf/arrabida.pdf