摘要
本文介绍了ROSAT卫星对活动双星的观测及其观测性质 ,并比较活动双星的冕活动与同光谱型单星的不同 。
This review reports the observations of the active binaries by ROSAT satellite and the relevant observed properties. With a comparison of the coronal actovities of the active binaries to those single stars with the same spectral type,the secondary star effect and the mass transfer effect on the activities or the active binaries are discussed.