A VLT-ULTRACAM study of the fast optical quasi-periodic oscillations in the polar V834 Centauri

  title={A VLT-ULTRACAM study of the fast optical quasi-periodic oscillations in the polar V834 Centauri},
  author={M. Mouchet and J. Bonnet-Bidaud and L. V. Som and E. Falize and D. Buckley and J. Breytenbach and R. Ashley and T. Marsh and V. Dhillon},
  journal={Astronomy and Astrophysics},
  • M. Mouchet, J. Bonnet-Bidaud, +6 authors V. Dhillon
  • Published 2017
  • Physics
  • Astronomy and Astrophysics
  • Quasi-periodic oscillations (QPOs) of a few seconds have been detected in some polars, the synchronised subclass of cataclysmic systems containing a strongly magnetised white dwarf which accretes matter from a red dwarf companion. The QPOs are thought to be related to instabilities of a shock formed in the accretion column, close to the white dwarf photosphere above the impact region. We present optical observations of the polar V834 Centauri performed with the fast ULTRACAM camera mounted on… CONTINUE READING
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