Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pobeo..90..147k&link_type=abstract
Publications of the Astronomical Observatory of Belgrade, vol. 90, pp. 147-150
Astronomy and Astrophysics
Astronomy
Scientific paper
We present our BR observations of the cataclysmic star ER UMa covering three consecutive light cycles at quiescence. Their light curves are asymmetric with steeper decreasing branch. While the large light amplitudes of the first two cycles may be expected for the quiescent state, the 0.9^{m} amplitude of the third cycle is unusual big. The period of the observed light modulations in 2008 is shorter than the orbital one. Thus our observations leaded to a discovery of large-amplitude negative superhumps at quiescent state of ER UMa.
Kjurkchieva Diana
Marchev Dobrin
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