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

Slemzin, V. A.; Grechnev, V. V.; Zhitnik, I. A.; Kuzin, Sergey; Chertok, I. M.; Богачев, С. А.; Ignatiev, A. P.; Pertsov, A. A.; Lisin, D. V.

doi:10.1017/s1743921305000098

Cited by 6 publications

(4 citation statements)

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“…Examination of the flare regions revealed a complicated temporal and spatial structure of the hot plasma dynamics, including the preflare phase (Pertsov and Zhitnik, 2003;Bogachev et al , 2005b).…”

Section: Main Observation Resultsmentioning

confidence: 99%

“…Detailed discussion of some results obtained in the SPIRIT experiment can be found in this issue (Bogachev et al, 2005b;Zhitnik et al, 2005;Khabarova et al, 2005;Chertok et al, 2005). …”

Section: T E Logmentioning

confidence: 99%

“…CME-associated dimmings in the transition region sometimes demonstrated a considerable delay (more than half an hour) with respect to the coronal dimmings (Slemzin et al, 2005a(Slemzin et al, , 2005b. A post-eruptive transient event was observed that appeared as a passage of an expanding cool cloud across the disk and could be observed in the transition-region line, while practically invisible in coronal lines.…”

Section: T E Logmentioning

confidence: 99%

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Main Results of the SPIRIT Experiment Onboard the CORONAS-F Satellite

et al. 2005

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The main results of the SPIRIT experiment on imaging spectroscopy of the Sun in the soft X-ray and extreme vacuum UV range are presented. The results were obtained onboard the CORONAS-F satellite, which has been operating since July 2001. More than 40 thousand observation sessions were performed during the experiment. About a million solar images and spectra (more than 250 Gb of information) were obtained, including monotemperature images of the solar atmosphere in six spectral regions, corresponding to temperatures from 0.05 to 2 MK; full-Sun spectral images (spectroheliograms) in more than 150 lines ( 177-207 Å and 285-335 Å , T from ~0.05 to 20 MK); images of the full Sun in the monochrome Mg XII line (8.42 Å, T ~ 10 MK); images of the solar corona at a distance of up to five solar radii; continuous series (up to 20 days long) of observations with high time resolution (40-100 s); observations of the flare dynamics, including the preflare, initial, and main phases, with a resolution of 7 s, and data on the absorption of X-ray and XUV solar radiation in the upper atmosphere of the Earth. The study was performed for the maximum of the 11-year solar activity cycle and for its decrease phase.

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Section: Main Observation Resultsmentioning

confidence: 99%

“…Detailed discussion of some results obtained in the SPIRIT experiment can be found in this issue (Bogachev et al, 2005b;Zhitnik et al, 2005;Khabarova et al, 2005;Chertok et al, 2005). …”

Section: T E Logmentioning

confidence: 99%

Section: T E Logmentioning

confidence: 99%

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Main Results of the SPIRIT Experiment Onboard the CORONAS-F Satellite

et al. 2005

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“…Those results were obtained from observations with the CORONAS-F /SPIRIT instrumentation set. When possible, the results were considered in combination with SOHO /EIT data Kuzin et al , 2004;Slemzin et al , 2004Slemzin et al , , 2005aGrechnev et al , 2005). Various additional images and movies illustrating the considered events are available at the Web sites http://helios.izmiran.troitsk.ru/lars/Chertok/0310_11/ index.html and http://helios.izmiran.troitsk.ru/lars/Chertok/0310_11/spirit/index.html…”

Section: Introductionmentioning

confidence: 99%

Manifestations of Coronal Mass Ejections in the EUV Range from Data of the CORONAS-F/SPIRIT Telescope

et al. 2005

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We briefly overview results of our study of the large-scale solar activity associated with coronal mass ejections (CMEs). The observational material is constituted with data of the SPIRIT telescope aboard the CORONAS-F satellite in the three EUV channels 175, 284, and 304 Å. In particular, we consider a powerful geoeffective event of November 4, 2003, which was not observed by the SOHO /EIT telescope, a series of extremely powerful events of October 2003, and an event of November 18, 2003, with filament eruption. The efficiency of combined analysis of the SPIRIT and EIT data is demonstrated. The analysis confirms the coincidence of many dimmings in different spectral channels, including coronal lines with different excitation temperatures and the transition-region line, as well as the global character and homology of dimmings in recurrent events. The higher cadence SPIRIT observations at 304 Å reveal a slowly propagating large-scale darkening probably caused by absorption of emission in the dense, cold plasma of an eruptive filament.

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