Abstract We present a model for unipolar induction in ultra-compact double degenerate binaries consisting of a white-dwarf pair. The power generated by ohmic dissipation of the electric currents driven by unipolar induction is calculated. The orbital dynamics of these ultra-compact systems is investigated, and their gravitational radiation is determined. We also discuss how electron-cyclotron masers develop when unipolar induction operates in ultra-compact double degenerate binaries and related objects, such as the white-dwarf planetary systems.
Keywords stars: binaries: close stars: white dwarfs gravitational waves masers radio continuum: stars X-rays: binaries planetary systems
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