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24 April 2024

» arxiv » 1505.7709

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Results of a campaign to observe outbursts of the dwarf nova CSS 121005:212625+201948
Jeremy Shears ; James Boardman ; David Boyd ; Denis Buczynski ; Pavol Dubovsky ; Juan-Luis Gonzalez Carballo ; Kenneth Menzies ; Ian Miller ; Roger Pickard ; Gary Poyner ; Richard Sabo ; Richard Sargent ;
Date:	28 May 2015
Abstract:	A monitoring programme of CSS 121005:212625+201948 covering nearly two observing seasons has shown that it is a typical SU UMa dwarf nova, but it has one of the shortest supercycles of its class, at 66.9(6) d. The superoutbursts are interspersed with 3 to 7 short duration (~2 days) normal outbursts each of which are separated by a mean interval of 11 days, but can be as short as 2 days. The most intensively studied superoutburst was that of 2014 November, which lasted 14 days and had an outburst amplitude of >4.8 magnitudes, reaching magnitude 15.7 at its brightest. Time resolved photometry revealed superhumps with a peak-to-peak amplitude of 0.2 magnitudes, later declining to 0.1 magnitude. The superhump period was Psh = 0.08838(18) d. Time resolved photometry was conducted during several other superoutbursts, which gave broadly similar results.
Source:	arXiv, 1505.7709
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