An electrically powered binary star?

Details An electrically powered binary star? An electrically powered binary star?

2001-11-19

arxiv.org/abs/astro-ph/0111358v1

Mon.Not.Roy.Astron.Soc. 331 (2002) 221

Astronomy and Astrophysics

Astrophysics

accepted by MNRAS

Scientific paper

10.1046/j.1365-8711.2002.05190.x

We propose a model for stellar binary systems consisting of a magnetic and a non-magnetic white-dwarf pair which is powered principally by electrical energy. In our model the luminosity is caused by resistive heating of the stellar atmospheres due to induced currents driven within the binary. This process is reminiscent of the Jupiter-Io system, but greatly increased in power because of the larger companion and stronger magnetic field of the primary. Electrical power is an alternative stellar luminosity source, following on from nuclear fusion and accretion. We find that this source of heating is sufficient to account for the observed X-ray luminosity of the 9.5-min binary RX J1914+24, and provides an explanation for its puzzling characteristics.

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