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Astron. Astrophys. 343, 909-915 (1999)
Photometric study of the nova-like variable MV Lyrae during an enormous outburst in 1997
E.P. Pavlenko 1 and
S.Yu. Shugarov 2
1 Crimean Astrophysical Observatory, 334413, Nauchny, Crimea, Ukraine and Isaac Newton Institute Chile, Crimean Branch (pavlenko@crao.crimea.ua)
2 Sternberg State Astronomical Institute, Moscow, Russia
Received 10 June 1998 / Accepted 4 December 1998
Abstract
We report photometry of the novalike variable MV Lyr during the
enormous outburst seen in 1997. We observed quasi-periodic
oscillations with typical periods of 19, 29, 47 min, light variations
at 0.1294 days (or its 1-day aliases) and amplitude
![[FORMULA]](img1.gif)
, and flickering consistent with a
shot-noise model.
Key words: stars:
oscillations 
stars: novae, cataclysmic
variables
stars: individual:
MV Lyr
stars: flare
stars: binaries:
close
stars: activity
Send offprint requests to: E. Pavlenko
Contents
- 1. Introduction
- 2. Observations
- 3. The peculiarity of present low state
- 4. The 1997 outburst
- 5. Frequency analysis of the data set
- 5.1. Hourly variations
- 5.2. Choice of likely period
- 5.3. Short-term light variations
- 6. Brief review of QPOs in MV Lyr
- 7. Conclusion
- Acknowledgements
- References
© European Southern Observatory (ESO) 1999
Online publication: March 1, 1999
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