Radio emission from Colliding-Wind Binaries: Observations and Models
  We have developed radiative transfer models of the radio emission from colliding-wind binaries (CWB) based on a hydrodynamical treatment of the wind-collision region (WCR). The archetype of CWB systems is the 7.9-yr period binary WR140, which exhibits dramatic variations at radio wavelengths. High-resolution radio observations of WR140 permit a determination of several system parameters, particularly orbit inclination and distance, that are essential for any models of this system. A model fit to data at orbital phase 0.9 is shown, and some short comings of our model described. 
S.M. Dougherty (1), J.M. Pittard (2), E.P. O'Connor (1 and   3)((1)National Resarch Council, Herzberg Institute, DRAO., Pent...