Extraordinary high-amplitude QPOs of asynchronous polar BY Cam at different beat phases

Details Extraordinary high-amplitude QPOs of asynchronous polar BY Cam at different beat phases Extraordinary high-amplitude QPOs of asynchronous polar BY Cam at different beat phases

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1273..317a&link_type=abstract

17TH EUROPEAN WHITE DWARF WORKSHOP. AIP Conference Proceedings, Volume 1273, pp. 317-319 (2010).

Astronomy and Astrophysics

Astronomy

Photometry, Astronomical Observatories, Brightness, Accretion Disks, Photography And Photometry, Observatories And Site Testing, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Accretion And Accretion Disks

Scientific paper

The long-term photometrical data of the asynchronous polar BY Cam obtaining with the 60-cm and the 35-cm telescopes of the Terskol observatory during 38 nights in 2008-2009 are analysed. The short-time resolution (10-30 s) of observations allowed to conclude that there are the quasi-periodical oscillations (QPOs) of brightness which occur mostly in a region of 1.5-15 min showing varying amplitudes up to 0.5 magnitudes. The behavior of the high-amplitude QPOs in dependence of the synodical cycle as well as their possible nature is considered.

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