X-ray Plasma Ejections and their association with other solar-activity   phenomena
  Recently developed in Wroclaw, a new catalogue of X-ray Plasma Ejections (XPEs) observed by the Soft X-ray Telescope onboard Yohkoh, is a very useful tool for some statistical studies. We investigated the association of XPEs with solar flares and coronal mass ejections (CMEs). We found that particular subclasses of XPEs show different levels of association. Moreover, flares and CMEs associated with different subclasses of XPEs show distinctly different characteristics. We conclude that the event that we call 'X-ray Plasma Ejection' can be a manifestation of different physical processes. 
M. Tomczak and E. Chmielewska
astro-ph.SR