We present an analysis of colour excess (CE) observations for 13 chromospherically active binary systems, together with 27 inactive reference stars of similar spectral types and luminosity classes of the components of these 13 binaries. We used the observations which were made by Johnson-Cousins ${BVR}_{c}\mathrm{I}_{c}$ , 2MASS, and WISE photometric systems. Our new photometric ${BVR}_{c}\mathrm{I}_{c}$ observations were obtained by means of 1 m telescope at TÜBİTAK National Observatory and 40 cm telescope at Ankara University Kreiken Observatory. To check the existence of extended matter around an active binary component(s) of these 13 binary systems, we examined the CE values at around primary/secondary minima and outside eclipses. The comparison of these CEs, obtained relative to those of reference stars of the same ${(B-V)_\circ}$ colours, especially during primary minima with those of secondary minima and outside eclipses, showed that these systems have greater excess radiation in primary minima than in both secondary minima and outside eclipses. We observed that the colour excesses, in general, most likely arise from the extended matter around the cooler component of a binary system. The comparison of CE values also showed that the extended matter of some of these systems was most likely covered or affected both of their components. Since no observational data were obtained during primary minimum of RW UMa, by excluding this binary system, an examination of the locations of cool and active components of the remaining 12 systems of this study on Hertzsprung-Russell diagram, together with corresponding evolutionary tracks, showed that most of the active binary systems have an extended matter not only caused from stellar activity but also more likely caused from evolutionary processes.

中文翻译：

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色球层活跃双星系统周围扩展物质的调查

我们对颜色过量进行分析(行政长官)对 13 个色球层活跃的双星系统以及 27 颗具有相似光谱类型和这 13 个双星组成部分的光度等级的不活跃参考星的观测。我们使用了 Johnson-Cousins 的观察结果 ${BVR}_{c}\mathrm{I}_{c}$ ,2MASS， 和明智的光度系统。我们的新光度计 ${BVR}_{c}\mathrm{I}_{c}$ 观测是通过 TÜBİTAK 国家天文台的 1 m 望远镜和安卡拉大学 Kreiken 天文台的 40 cm 望远镜获得的。为了检查这 13 个二元系统的一个活动二元组件周围是否存在扩展物质，我们检查了行政长官在主要/次要最小值和日食之外的值。这些比较消费电子产品, 相对于相同的参考星获得 ${(BV)_\circ}$ 颜色，特别是在初级极小值与次级极小值和日食外的颜色显示，这些系统在初级极小值中比在次级极小值和日外食中具有更多的过量辐射。我们观察到颜色过度，一般来说，很可能是由双星系统较冷组件周围的扩展物质引起的。的比较行政长官价值还表明，其中一些系统的扩展问题很可能被覆盖或影响了它们的两个组件。由于在初级最小值期间没有获得观测数据RW 乌玛，通过排除这个双星系统，在赫兹普伦-罗素图上对本研究的其余 12 个系统的冷和活跃组件的位置进行检查，以及相应的进化轨迹，表明大多数活跃的双星系统具有扩展物质，而不是仅由恒星活动引起，但也更有可能由进化过程引起。