Analisys of the dwarf nova 2010 in Pegasus observations

  • V.V. Shimansky Казанский федеральный университет, Казань, Россия
  • A.A. Mitrofanova Казанский федеральный университет, Казань, Россия
  • N.V. Borisov Специальная астрофизическая обсерватория, пос. Нижний Архыз, КЧР, Россия
  • M.M. Gabdeev Специальная астрофизическая обсерватория, пос. Нижний Архыз, КЧР, Россия

Abstract

We have analyzed photometric and spectroscopic observations of GSC 02197-00886 at the maximum of outburst (08.05.2010) and near quiescence (04.08.2010). In spectra of the outburst dominates radiation of optically thick accretion disk with hot boundary layer, which corresponds to the spectrum of WZ Sge-Type Dwarf Novae. In the near quiescence spectrum there is radiation of optically thin accretion disk with emission in HI and HeI lines against the background of absorption spectrum of the white dwarf. Parameters of GSC 02197-00886, obtained by combination of radial velocities of the components and Main Sequence tracks for cold star, differ significantly from already found parameters of other WZ Sge-Type systems. The hypothesis was put forward about initiation of the secondary component in the outburst and its prolonged relaxation to the Main Sequence.

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Published
2013-03-01
How to Cite
Shimansky V., Mitrofanova A., Borisov N., Gabdeev M., 2013. Izvestiya Krymskoi Astrofizicheskoi Observatorii, vol. 109, no. 1, pp. 29-37. Available at: https://jn.craocrimea.ru/index.php/izvcrao/article/view/298 (Accessed: 5December2020)
Section
Research articles