Wrocław in Space: X-ray diagnostics of solar corona

Title:		Wrocław in Space: X-ray diagnostics of solar corona
Authors:		M. Siarkowski, A. Kępa, B. Sylwester and J. Sylwester
Abstract:		X-ray observations of the solar corona have been undertaken in Solar Physics Division (Space Research Centre of the Polish Academy of Sciences, Wrocaw) for more than 35 years. Short history of these observations is presented. We focus mainly on the results from the latest experiments. These are hard X-ray photometer onboard the INTERBALL-Tail Probe and two Bragg crystal spectrometers recording solar X-ray spectra from CORONAS-F satellite. Such observations provide useful information on solar coronal plasma heated up to temperatures of several 10⁶ - 10⁷ K.