The 2011 February superoutburst of the dwarf nova SDSS J112003.40+663632.4

Details The 2011 February superoutburst of the dwarf nova SDSS J112003.40+663632.4 The 2011 February superoutburst of the dwarf nova SDSS J112003.40+663632.4

2011-09-27

arxiv.org/abs/1109.5833v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted for publication in the Journal of the British Astronomical Association. 12 pages, 5 figures

Scientific paper

We report unfiltered photometry of SDSS J112003.40+663632.4 during the 2011 February outburst which revealed the presence of superhumps with peak-to-peak amplitude of up to 0.22 magnitudes showing this to be an SU UMa type dwarf nova. The outburst amplitude was 5.4 magnitudes above mean quiescence and it lasted at least 12 days. The mean superhump period during the plateau phase was Psh = 0.07057(19) d.

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