The disappearance and reformation of the accretion disc during a low state of FO Aquarii

  title={The disappearance and reformation of the accretion disc during a low state of FO Aquarii},
  author={J. M. Hameury and Jan Lasota},
  journal={Astronomy and Astrophysics},
FO Aquarii, an asynchronous magnetic cataclysmic variable (intermediate polar) went into a low-state in 2016, from which it slowly and steadily recovered without showing dwarf nova outbursts. This requires explanation since in a low-state, the mass-transfer rate is in principle too low for the disc to be fully ionized and the disc should be subject to the standard thermal and viscous instability observed in dwarf novae. We investigate the conditions under which an accretion disc in an… 

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