X-ray and radio emission from colliding stellar winds
  The collision of the hypersonic winds in early-type binaries produces shock heated gas, which radiates thermal X-ray emission, and relativistic electrons, which emit nonthermal radio emission. We review our current understanding of the emission in these spectral regions and discuss models which have been developed for the interpretation of this emission. Physical processes which affect the resulting emission are reviewed and ideas for the future are noted. 
J. M. Pittard, S. M. Dougherty, R. F. Coker, M. F. Corcoran