2010/01/06 by R. K. Zamanov, R. Zamanov, S. Boeva +12
Physics and Astronomy · #Astronomy #Astrophysical Phenomena and Observations #Astrophysics #Cataclysmic variable star #Diagram #Flicker #Galaxy #Gamma-ray bursts and supernovae #Hertzsprung–Russell diagram #Luminosity #Physics #Pulsars and Gravitational Waves Research #Stars #Stellar evolution #White dwarf #astro-ph.SR
paper · pdf · doi:10.1111/j.1365-2966.2010.16289.x
7 pages, MNRAS (accepted)
arxiv created 2010/01/06 · openalex publication_date 2010/02/01 · arxiv updated 2015/05/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report observations of the flickering variability of the recurrent nova RS Oph at quiescence on the basis of simultaneous observations in five bands (UBVRI). RS Oph has a flickering source with (U−B)0=−0.62 ± 0.07, (B−V)0= 0.15 ± 0.10 and (V−R)0= 0.25 ± 0.05. We find for the flickering source a temperature Tfl≈ 9500 ± 500 K, and luminosity Lfl∼ 50–150 L⊙ (using a distance of d= 1.6 kpc). We also find that on a (U−B) versus (B−V) diagram, the flickering of the symbiotic stars differs from that of the cataclysmic variables. The possible source of the flickering is discussed. The data are available upon request from the authors.