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EUV observations of CME-associated eruptive phenomena with the CORONAS-F/SPIRIT telescope/spectroheliograph

TitleEUV observations of CME-associated eruptive phenomena with the CORONAS-F/SPIRIT telescope/spectroheliograph
Publication TypeConference Paper
Year of Publication2005
AuthorsSlemzin, V. A., Grechnev V. V., Zhitnik I. A., Kuzin S. V., Chertok I. M., Bogachev S. A., Ignatiev A. P., Pertsov A. A., and Lisin D. V.
EditorDere, K., Wang J., and Yan Y.
Conference NameCoronal and Stellar Mass Ejections
Abstract

A multi-channel SPIRIT telescope/spectroheliograph aboard the CORONAS-F satellite operating in soft X-ray and EUV ranges ( T {\tilde} 0.05-15 MK) is an effective instrument for complex studies of CME-associated phenomena such as eruptive filaments, dimmings, coronal waves, posteruptive arcades, etc. In particular, SRIRIT observations of high-temperature (T = 5-15 MK) plasma structures in the MgXII 8.42 Å line show specific pre-CME sigmoid magnetic field configurations. Eruptions of filaments (prominences) and dimmings in a CME process are seen with a high contrast in the coronal 175 Å band (FeIX-XI) and the transition-region 304 Å (HeII) images. Our results are illustrated by several powerful eruptive events of the current solar cycle. We compare SPIRIT data with observations at other spaceborne and ground-based instruments (SOHO/EIT, łt}e1{\gt}Yohkohłt}/e1{\gt}/SXT, and H α images, etc.)
DOI10.1017/S1743921305000098