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

Published online by Cambridge University Press:  03 June 2005

V.A. Slemzin ,
V.V. Grechnev ,
I.A. Zhitnik ,
S.V. Kuzin ,
I.M. Chertok ,
S.A. Bogachev ,
A.P. Ignatiev ,
A.A. Pertsov  and
D.V. Lisin
V.A. Slemzin
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
V.V. Grechnev
Affiliation:
Institute of Solar Terrestrial Physics, Irkutsk, Russia, email: [email protected]
I.A. Zhitnik
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
S.V. Kuzin
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
I.M. Chertok
Affiliation:
IZMIRAN, Troitsk, Moscow Region, Russia, email: ichertok.izmiran.ru
S.A. Bogachev
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
A.P. Ignatiev
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
A.A. Pertsov
Affiliation:
P.N. Lebedev Physical Institute, Moscow, Russia, email: [email protected]
D.V. Lisin
Affiliation:
IZMIRAN, Troitsk, Moscow Region, Russia, email: ichertok.izmiran.ru
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Abstract

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A multi-channel SPIRIT telescope/spectroheliograph aboard the CORONAS-F satellite operating in soft X-ray and EUV ranges ($T \sim $0.05–15 MK) is an effective instrument for complex studies of CME-associated phenomena such as eruptive filaments, dimmings, coronal waves, posteruptive arcades, etc. In particular, SRIRIT observations of high-temperature (T = 5–15 MK) plasma structures in the MgXII 8.42 Å line show specific pre-CME sigmoid magnetic field configurations. Eruptions of filaments (prominences) and dimmings in a CME process are seen with a high contrast in the coronal 175 Å band (FeIX–XI) and the transition-region 304 Å (HeII) images. Our results are illustrated by several powerful eruptive events of the current solar cycle. We compare SPIRIT data with observations at other spaceborne and ground-based instruments (SOHO/EIT, Yohkoh/SXT, and H$\alpha$ images, etc.)To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Keywords

Sun: coronaSun: coronal mass ejections (CMEs)Sun: X-raysgamma rays
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS226 , September 2004 , pp. 21 - 26
Copyright
© 2005 International Astronomical Union