A Catalogue of Solar X-ray Plasma Ejections observed by the Soft X-ray Telescope onboard YOHKOH

Abstract

A catalogue of X-ray Plasma Ejections (XPEs) observed by the Soft X-ray Telescope onboard the YOHKOH satellite has been recently developed in the Astronomical Institute of the University of Wroc{\l}aw. The catalogue contains records of 368 events observed in years 1991-2001 including movies and crossreferences to associated events like flares and Coronal Mass Ejections (CMEs). 163 XPEs from 368 in the catalogue were not reported until now. A new classification scheme of XPEs is proposed in which morphology, kinematics, and recurrence are considered. The relation between individual subclasses of XPEs and the associated events was investigated. The results confirm that XPEs are strongly inhomogeneous, responding to different processes that occur in the solar corona. A subclass of erupting loop-like XPEs is a promising candidate to be a high-temperature precursor of CMEs.