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arXiv · 1502.02827

Difference between the optical flickering colours of cataclysmic variables and symbiotic recurrent novae

R. Zamanov·S. Boeva·G. Latev·K. A. Stoyanov·S. V. Tsvetkova
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Abstract

We performed simultaneous observations in 3 bands (UBV) of the flickering variability of the recurrent novae RS Oph and T CrB at quiescence. Using new and published data, we compare the colours of the flickering in cataclysmic variables and symbiotic recurrent novae. We find a difference between the colours of the flickering source in these two types of accreting white dwarfs. The detected difference is highly significant with $ p-value \approx 2 \times 10^{-6}$ for the distributions of $(U-B)_0$ colour and $p \approx 3 \times 10^{-5}$ on (U-B) versus (B-V) diagram. The possible physical reasons are briefly discussed. The data are available upon request from the authors.

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R. Zamanov, S. Boeva, G. Latev, K. A. Stoyanov, S. V. Tsvetkova. 2015-02-10. Difference between the optical flickering colours of cataclysmic variables and symbiotic recurrent novae. https://doi.org/10.1002/asna.201412142

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