UBVRI对蛇夫座RS在静止期闪烁的观测
UBVRI observations of the flickering of RS Ophiuchi at Quiescence
摘要：
我们报告的闪烁变化的经常性新星RS Oph在静止的基础上，同时在5个波段（UBVRI）的观测。RS Oph具有闪烁源，（U-B）_0=-0.62 \pm 0.07，（B-V）_0=0.15 \pm 0.10，（V-R）_0=0.25 \pm 0.05。我们发现闪烁源的温度T_fl = 9500 \pm 500 K，亮度L_fl = 50 - 150 L_sun（使用d=1.6kpc的距离）。我们还发现，在（U-B）vs（B-V）图上，共生星的闪烁不同于激变变星。讨论了闪烁的可能来源。这些数据可应作者的要求提供，并可在网站www.astro.bas.bg/~rz/RSOph.UBVRI.2010.MNRAS.tar.gz上获得。
英文摘要：
We report observations of the flickering variability of the recurrent nova RS Oph at quiescence on the basis of simultaneous observations in 5 bands (UBVRI). RS Oph has flickering source with (U-B)_0=-0.62 \pm 0.07, (B-V)_0=0.15 \pm 0.10, (V-R)_0=0.25 \pm 0.05. We find for the flickering source a temperature T_fl = 9500 \pm 500 K, and luminosity L_fl = 50 - 150 L_sun (using a distance of d=1.6kpc). We also find that on a (U-B) vs (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 and on the web www.astro.bas.bg/~rz/RSOph.UBVRI.2010.MNRAS.tar.gz.
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