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H α counterparts of X-ray bright points in the solar atmosphere

Zhang, Ping; Fang, Cheng; Zhang, QingMin

X-ray bright points (XBPs) are small-scale brightenings in the solar corona. Their counterparts in the lower atmosphere, however, are poorly investigated. In this paper, we study the counterparts of XBPs in the upper chromosphere where the Hα line center is formed. The XBPs were observed by the X-ray Telescope (XRT) aboard the Hinode spacecraft du…