Radio emission from Colliding-Wind Binaries: Observations and Models

Details Radio emission from Colliding-Wind Binaries: Observations and Models Radio emission from Colliding-Wind Binaries: Observations and Models

2005-10-18

arxiv.org/abs/astro-ph/0510538v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures, contribution to "Massive Stars and High-Energy Emission in OB Associations"; JENAM 2005, held in Liege (Be

Scientific paper

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.

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