The hidden symbiotic star SU Lyn -- detection of flickering in U band

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2206.10151.pdf (291.4 KB)

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2022

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Ciencias Integradas

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Center

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https://hdl.handle.net/10272/21977

DOI

10.48550/ARXIV.2206.10151

Abstract

We report photometric observations of the hidden symbiotic star SU Lyn in the optical bands. In five nights we detect a weak flickering in U band with amplitude of about 0.05 magnitudes. No intranight variations are found in B, V, g' and r' bands. This is one more indication that the secondary component is a white dwarf accreting at low accretion rate. We also searched for intranight variability of a dozen related object (RR Boo, RT Boo, AM Cyg, AG Peg, BF Cyg, NQ Gem, StHa190, V627 Cas, XX Oph, FS Cet and Y Gem) in which no variability above the observational errors is detected.

Keywords

Stars; Binaries; Symbiotic – accretion, accretion discs – white dwarf – stars; Iindividual; SU Lyn

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22 Física

Bibliographic citation

Zamanov, R. K., Kostov, A., Moyseev, M., Petrov, N., Nikolov, Y. M., Latev, G. Y., Marchev, D., Boeva, S., Stoyanov, K. A., Minev, M. S., Marti, J., Radeva, V., Sanchez-Ayaso, E., Bode, M. F., Ilkiewicz, K., Nikolov, G., Luque-Escamilla, P. L., Spassov, B., Borisov, B., … Kurtenkov, A. (2022). The hidden symbiotic star SU Lyn -- detection of flickering in U band (Version 2). arXiv. https://doi.org/10.48550/ARXIV.2206.10151

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