In: Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 42, no. 1
D. Chochol - N.a. Katysheva - S.yu. Shugarov - P.o. Zemko - M.v. Andreev
Details:
Year, pages: 2012, 39 - 79
Keywords:
dwarf novae, photometry, superoutburst, superhumps
Original source URL: http://www.astro.sk/caosp/Eedition/Abstracts/2012/Vol_42/No_1/pp39-79_abstract.html
About article:
We present our UBVRCIC CCD photometry of a new dwarf nova OT J213806.6+261957 in Pegasus, discovered during its superoutburst on May 6, 2010 and classified as a WZ Sge-type star. In the term May 15 — November 27, 2010, we obtained more than 10 000 CCD observations of the nova. Two-colour diagrams together with the superoutburst evolutionary tracks of the nova are presented. The analysis of our data revealed the presence of ordinary superhumps with the mean period of 0.055106 d and late superhumps with the period of 0.05490 d. We calculated the orbital period of the dwarf nova Pegasi 2010 to be 0.0542 d ± 0.005 and estimated the mass of the red dwarf component in the binary as 0.09 ± 0.01 M☉. The period change of superhumps of the dwarf nova Pegasi 2010 is in agreement with other WZ Sge-type stars. The evolution of superhumps profiles is discussed. The superoutburst of the dwarf nova Pegasi 2010 finished at the end of September 2010. In October and November 2010 night-to-night brightness variations as well as a flickering on a time scale of minutes were detected.
How to cite:
ISO 690:
Chochol, D., Katysheva, N., Shugarov, S., Zemko, P., Andreev, M. 2012. Photometric investigation of the dwarf nova Pegasi 2010 — a new WZ Sge-type object. In Contributions of the Astronomical Observatory Skalnaté Pleso, vol. 42, no.1, pp. 39-79. 1335-1842.
APA:
Chochol, D., Katysheva, N., Shugarov, S., Zemko, P., Andreev, M. (2012). Photometric investigation of the dwarf nova Pegasi 2010 — a new WZ Sge-type object. Contributions of the Astronomical Observatory Skalnaté Pleso, 42(1), 39-79. 1335-1842.