Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-23T07:03:40.066Z Has data issue: false hasContentIssue false
  • English
  • Français

An Unusual Low State of the Polar AR UMa

Published online by Cambridge University Press:  23 April 2012

Diana P. Kjurkchieva  and
Dragomir V. Marchev
Diana P. Kjurkchieva
Affiliation:
Dept. of Astronomy, Shumen University, 9700 Shumen, Bulgaria email: [email protected]; [email protected]
Dragomir V. Marchev
Affiliation:
Dept. of Astronomy, Shumen University, 9700 Shumen, Bulgaria email: [email protected]; [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Our photometric CCD observations of the short-period cataclysmic star AR UMa in 2008 during its low state revealed light variability with a bigger period (by around 10%) and considerably smaller amplitudes than the previous ones. The light curve had a single-wave shape, opposite to the previously observed low states which revealed doubled-humped shape.

Keywords

stars: close binariescataclysmic variablesindividual AR UMa
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 498 - 500
Copyright
Copyright © International Astronomical Union 2012

References

Gansicke, B., Schmidt, G., Jordan, S., & Szkody, P. 2001, ApJ, 555, 380CrossRefGoogle Scholar
Howell, S., Gelino, D., & Harrison, T. 2001, AJ, 121, 482CrossRefGoogle Scholar
Lenz, P. & Breger, M. 2005, Comm. in Asteroseismology, 146, 53CrossRefGoogle Scholar
Remillard, R., Schachter, J., Silber, A., & Slane, P. 1994, ApJ, 426, 288CrossRefGoogle Scholar
Shakhowskoj, N. & Havelin, A. 2000, IBVS, 4858Google Scholar
Schmidt, G., Szkody, P., Smith, P., Silber, A., Tovmassian, G., Hoard, D. W., Gansicke, B. T. & de Martino, D. 1996, ApJ, 473, 483CrossRefGoogle Scholar
Szkody, P., Vennes, S., Schmidt, G., Wagner, R., Fried, R., Shafter, A., & Fierce, E., 1999, ApJ, 520, 841CrossRefGoogle Scholar
Wenzel, W. 1993, IBVS, 3890Google Scholar