| Issue |
A&A
Volume 389, Number 2, July II 2002
|
|
|---|---|---|
| Page(s) | 478 - 484 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20020600 | |
| Published online | 27 June 2002 | |
Statistical analysis of the long-term visual light curve parameters of dwarf novae
1
University of Istanbul, Faculty of Science, Department of Astronomy and Space Sciences, 34452 University-Istanbul, Turkey
2
Istanbul University Observatory Research and Application Center, 34452 University-Istanbul, Turkey
3
American Association of Variable Star Observers, 25 Birch Street, Cambridge, MA 02138, USA
Corresponding author: T. Ak, tanselak@istanbul.edu.tr
Received:
15
February
2002
Accepted:
9
April
2002
The long-term visual light curve parameters of 36 dwarf
novae are measured. The data is anayzed in search of likely
relationships among the light curve parameters and system parameters.
New relations of the orbital period with the mean light curve
parameters are given. Our findings for the correlation analysis
of individual systems agree with some of the results in previous
studies. Almost all of the systems in this study have a bimodal
frequency distribution of the outburst duration. By comparing the
observational correlations with their theoretical counterparts,
we find that the value of the viscosity parameter of the disk
instability model is 
.
Key words: stars: dwarf novae / stars: novae, cataclysmic variables / stars: variables: general
© ESO, 2002
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