Photometric investigation of V466 And - a new WZ Sge-type dwarf nova

Details Photometric investigation of V466 And - a new WZ Sge-type dwarf nova Photometric investigation of V466 And - a new WZ Sge-type dwarf nova

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010coska..40...19c&link_type=abstract

Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 40, no. 1, p. 19-71.

Astronomy and Astrophysics

Astronomy

1

Dwarf Novae, Photometry, Superoutburst, Superhumps

Scientific paper

We present the UBV(RI)C photometry of a new dwarf nova V466 And, discovered during its superoutburst on Sept. 1.6, 2008 and classified as a WZ Sge-type object. In the first 11 days of the superoutburst, the early superhumps with the period of 0.056383d were found. In days 13 — 23 of the superoutburst, the ordinary superhumps with the period of 0.05713d were exposed. They were replaced by late superhumps with the period of 0.056d in days 24 — 33 of the superoutburst. After one month, the dwarf nova returned to its pre-outburst state. A list of known WZ Sge-type dwarf novae, including suspected ones, is presented. We determined a mean value of superhump period excess for WZ Sge-type objects as ɛ=0.019±0.003. The multicolour photometry of the field stars enables us to conclude that there is no appreciable interstellar extinction in the direction of V466 And.

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