MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps

Details MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps

2011-02-21

arxiv.org/abs/1102.4164v1

AIPC., vol. 1273, pp. 320-323 (2010)

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

17TH European White Dwarf Workshop. AIP Conference Proceedings, Volume 1273, pp. 320-323 (2010)

Scientific paper

The multi-site photometric observations of MN Dra were made over 77 nights in August-November, 2009. The total exposure was 433 hours. During this time the binary underwent two superoutbursts and five normal outbursts. During the course of first superoutburst period of positive superhumps decreased with extremely large $\dot P = -1.5 \times 1.0^{-4}$ for SU UMa-like dwarf novae, confirming known behavior of MN Dra [1]. Between the superoutbursts MN Dra displayed negative superhumps. Their period changed cyclically around 0.096-day value.

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