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Multi-wavelength studies of solar corona with the SPIRIT experiment aboard the CORONAS-F satellite

Multi-wavelength studies of solar corona with the SPIRIT experiment aboard the CORONAS-F satellite. S. Kuzin *, V. Slemzin ** P.N. Lebedev Physical Institute of Russian Academy of Science, Moscow, Russia * kuzin@mail1.lebedev.ru ** slem@mail1.lebedev.ru.

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Multi-wavelength studies of solar corona with the SPIRIT experiment aboard the CORONAS-F satellite

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  1. Multi-wavelength studies of solar corona with the SPIRIT experiment aboard the CORONAS-F satellite S. Kuzin*, V. Slemzin** P.N. Lebedev Physical Institute of Russian Academy of Science, Moscow, Russia *kuzin@mail1.lebedev.ru **slem@mail1.lebedev.ru

  2. Full Sun imaging EUV-XUV spectroscopy in the SPIRIT experiment Simultaneous imaging in several wavelength bands corresponding to different plasma temperatures Applications: - A diagnostic tool (homogeneous plasma) - At-once temperature distributions across non-homogeneous structures and boundary conditions - Heating and dissipative processes in short-time scale - Mass motions by absorption - Density distributions, abundances etc.

  3. Spectral bands of the SPIRIT instrument and excitation temperatures of ions in solarplasma • The SPIRIT complex comprises two instruments • SRT-C telescope assembly • RES-C spectroheliograph assembly

  4. Ritchey-Chretien telescope for 171, 195, 284, 304 Å bands (multilayer optics is analogous to the SOHO EIT telescope). FOV 42’, angular scale 2,5”/pix. Herschel telescope-coronagraph for 175, 304 Å bands with off-axis paraboloids with Mo-Si coating. FOW 45’, angular scale 2,6”/pix. Coronagraphic mode: the instant FOV 45” at 2-5 Rsun. two sky cameras to control pointing to the Sun. SRT-C telescope assembly

  5. Coronagraphic mode Vignetting function

  6. two MgXII full Sun Bragg crystal spectroheliographs ( = 8,418-8,423 Å) with orthogonal dispersion planes. FOV 1,30 , angular scale 4,1”/pix, spectral resolution 3.10-3 Å two XUV diffraction grating slitless spectroheliographs, each gives full Sun spectral images in two selectable spectral bands 177-207 Å and 280 – 335 Å. Angular scale 6”x1’/pix, spectral resolution 3.10-2 Å /pix. RES-C spectroheliograph assembly

  7. Ritchey-Chretien telescope Herschel telescope flare CH

  8. Plasma temperature response functionsCalculated using CHIANTI database For EIT 195А in flares LgT>6.2 - 0.31! SPIRIT 175 A 304 A λ ionLgT 182,8 OIV 4,6-5,1 172,2 OV 5,2-5,4 171,1 FeIX 5,5-6,0 180,4 FeXI 6,1-6,3 192,8 FeXI 6,7-6,8 173,4 FeXX 6,9-7,5 λ ion LgT 303,8 HeII 4,0-5,5 315,0 MgVIII 5,8-6,0 303,3 SiXI 6,1-6,2 284,2 FeXV 6,3-6,5 335,4 FeXVI 6,6-6,9 255,1 FeXXIV 7,1-7,5

  9. Simultaneous two-wavelength imaging in 175/304 Å 175 Å 304 Å

  10. Fixed difference two-wavelength movie for the eruption event of 18 November 2003 255 175 A 0 255 304 A Flare M3.9 08:12-08:59UT, Halo CME (LASCO onset 08:06 UT), 1660 km/s

  11. Two-wavelength imaging of EUV corona in 175/304 Å Eruptiove prominence of 02 February 2003 02:55 04:07 04:28 05:41 06:02

  12. Full-Sun images in MgXII 8,43 A line (T~ 10MK) “spider”

  13. Multi-temperature image of coronal structure MgXII, 10MK + FeXII-XIII, 1.3MK • MgXII core is separated from the arcade seen in Fe line. Long lifetime (hours). • High temperature gradient ~ 5-10 MK/50-100 Mm ~ 0.1K/m. • Problems: • diagnostics • source of energy • stability conditions

  14. Observations of post-eruptive arcade on October 22, 2001, 10:13–10:22 UT SSRT Arcade is stable for T>7h Cooling time ~2-3 h SPIRIT MgXII – 5-15 MK SPIRIT 175 A – 1 MK SXT 6 MK, ne~1010 All data are in agreement with assumption: T~8 MK, ne~1010, B~7 Gs =>  >1 !?

  15. XUV spectroheliometer: 177-210A flare

  16. XUV spectroheliometer: 285-335A flare

  17. Separation of SiXI and HeII lines 1.6 MK 0.05-0.1 MK

  18. Spectroscopic study of X17 flare on September 07,2005

  19. Spectroheliograms of the Х17 flare 2005-09-07 in 280-335A spectral band

  20. Spectrograms of pre-flare and the maximum phase of Х17 flare of 2005-09-07 in 280-335A spectral region

  21. Spectroheliograms of Х17 flare 2005-09-07 in 177-210A spectral band

  22. Spectrograms of pre-flare and the maximum phase of Х17 flare2005-09-07 in 177-210A spectral region

  23. Height distribution of the DEM (29.12.2001)

  24. Conclusions • The SPIRIT experiment was the first to show high efficiency of simultaneous imaging in multi-temperature bands far before SDO. • SPIRIT has demonstrated new original spectroscopic techniques: imaging in MgXII line, full-Sun spectra, EUV coronagraph with outer occulter. New class of hot solar structures was observed with the MgXII channel. • The SPIRIT spectroscopic data can be used for studying of various solar structures: flares, active regions, post-eruptive arcades, eruptive prominences, coronal holes, etc.

  25. I.A. Zhitnik,O.I. Bougaenko, J.-P. Delaboudiniere, A.P. Ignatiev, V.V. Korneev, V.V. Krutov, S.V. Kuzin, D.V. Lisin, A.V. Mitrofanov, S.N. Oparin, V.N. Oraevsky, A.A. Pertsov , V.A. Slemzin ,I.I. Sobelman, A.I. Stepanov, J. Schwarz. SPIRIT X-RAY TELESCOPE/SPECTROHELIOMETER RESULTS. ESA SP-506 "Solar Variability: from Core to Outer Frontiers". 2002. P.915-919. I.A.Zhitnik, O.I.Bugaenko, A.P.Ignat’ev, V.V.Krutov, .V.Kuzin,A.V.Mitrofanov, S.N.Oparin, A.A.Pertsov, A.Slemzin, A.I.Stepanov and A.M.Urnov. Dynamic 10 MK plasma structures observed in monochromatic full Sun images by the SPIRIT spectroheliograph on the CORONAS-Fmission. Mon. Not. Roy. Astron. Soc., 338,67-71, 2003. I. Zhitnik, S.Kuzin, A.Afanas’ev, O.Bugaenko, A.Ignat'ev, V.Krutov, A.Mitrofanov, S.Oparin, A.Pertsov, V.Slemzin, N.Sukhodrev, A.Urnov. XUV observations of solar corona in the SPIRIT experiment on board the CORONAS-F satellite. Adv. Space Res., v. 32, №4, p.473-477, 2003. I.Zhitnik, S.Kuzin, O.Bugaenko, A.Ignat'ev, V.Krutov, D.Lisin, A.Mitrofanov, S.Oparin, A.Pertsov, V.Slemzin, A.Urnov. Results of XUV full Sun imaging spectroscopy for eruptive and transient events by the SPIRIT spectroheliograph on the CORONAS-F mission. Adv. Space Res., v. 32, № 12, p. 2573-2577, 2003. Publications of the SPIRIT results

  26. V. Slemzin, O.Bugaenko, A.Ignatiev, V. Krutov, S. Kuzin, A.Mitrofanov, S. Oparin, A. Pertsov, A. Stepanov, I. Zhitnik. Investigation of absorption of solar EUV-radiation in the Earth's atmosphere at altitudes of 100-500 km using solar images in the experiments TEREK-C (CORONAS-I) and SPIRIT (CORONAS-F). Proc. ISCS 2003 Symposium “Solar Variability as an input to the Earth’s Environment”, Tatranska Lomnica, Slovakia, 23-28 June 2003. ESA SP-535 (2003), p.389-392. A. Pertsov, I. Zhitnik, O. Bougaenko, A. Ignatiev, V. Krutov, S. Kuzin, A. Mitrofanov, S. Oparin, V. Slemzin. High resolution temporal and spatial dynamics of solar flares from the SPIRIT MgXII 8,42A spectral images of the Sun. Proc. ISCS 2003 Symposium “Solar Variability as an input to the Earth’s Environment”, Tatranska Lomnica, Slovakia, 23-28 June 2003. ESA SP-535 (2003), p.239-241. S. Kuzin, S. Bozhenkov, I. Zhitnik, A. Perzov, A. Ignat’ev, O.Bugaenko, I. Sobel’man, S. Oparin. Diagnostics of solar corona plasma by means of EUV spectroheliograph RES-C on Coronas-F spacecraft. Submitted to Adv. Sp. Res., 2005. S. Kuzin, I. Chertok, V. Grechnev, V. Slemzin, O. Bugaenko, I. Zhitnik, A. Ignat’ev, and A. Pertsov. CME-associated dimmings on the Sun observed with the EUV SPIRIT telescope on the Coronas-F spacecraft. Submitted to Adv. Sp. Res., 2005. Bogomolov, A. V.; Denisov, Yu.I.; Logachev, Yu.I.; Morozov, O. V.; Myagkova, I. N.; Svertilov, S. I.; Zhitnik, I. A.; Ignatiev, A. P.; Oparin, S. N.; Pertsov, A. A.Polarization of Hard X-Rays in October-November, 2003 Solar Flares Observed Onboard CORONAS-F Satellite. Submitted to Adv. Sp. Res., 2005.

  27. V.V. Grechnev, A.M. Uralov, V.G. Zandanov, G.V. Rudenko, V.N. Borovik, I.Y. Grigorieva, V. A. Slemzin, S.A. Bogachev, S.V. Kuzin, I.A. Zhitnik, A.A. Pertsov, K. Shibasaki, M.A. Livshits. Observations of a post-eruptive arcade on October 22, 2001 with CORONAS-F/SPIRIT, other spaceborne telescopes, and in microwaves. 2005, Publ. Astron. Soc. Japan (in press). V. V. Grechnev, I. M. Chertok. V. A. Slemzin, S. V. Kuzin, A. P. Ignat’ev, A. A. Pertsov, I. A. Zhitnik. J.-P. Delaboudini`ere, F. Auch`ere. CORONAS-F/SPIRIT EUV observations of October–November 2003 solar eruptive events in combination with SOHO/EIT data. Journal of Geoph. Res., 2005, Vol. 110, A09S07. V. Slemzin, I. Chertok, V. Grechnev A., Ignat'ev S., Kuzin A., Pertsov ,I. Zhitnik J.-P. Delaboudinière. Multi-wavelength observations of CME-associated structures on the Sun with the CORONAS-F/SPIRIT EUV telescope. Multi-wavelength investigations of solar activity. Proceedings of IAU Symposium 223, held in Saunt Petersburg, Russia, June 14-19, 2004. Ed. by A.V. Stepanov, E.E. Benevolenskaya, A.G. Kosovichev. Cambridge: Cambridge University Press, 2005, p. 533-536. V. Slemzin, I. Chertok, V. Grechnev A., Ignat'ev S., Kuzin A., Pertsov ,I. Zhitnik J.-P. Delaboudinière. Multi-wavelength observations of CME-associated structures on the Sun with the CORONAS-F/SPIRIT EUV telescope. Multi-wavelength investigations of solar activity. Proceedings of IAU Symposium 223, held in Saunt Petersburg, Russia, June 14-19, 2004. Ed. by A.V. Stepanov, E.E. Benevolenskaya, A.G. Kosovichev. Cambridge: Cambridge University Press, 2005, p. 533-536.

  28. S. Bogachev, V. Slemzin, O. Bugaenko, V. Grechnev, S. Bozhenkov, S. Kuzin, I. Zhitnik, A. Pertsov. First-level data processing for the CORONAS-F/SPIRIT EUV experiment. 2005, Multi-wavelength investigations of solar activity. Proceedings of IAU Symposium 223, held in Saunt Petersburg, Russia, June 14-19, 2004. Ed. by A.V. Stepanov, E.E. Benevolenskaya, A.G. Kosovichev. Cambridge: Cambridge University Press, 2005, p. 611-612. V.A. Slemzin, V.V. Grechnev, I.A. Zhitnik, S.V. Kuzin, I.M. Chertok, S.A. Bogachev, A.P. Ignatiev, A.A. Pertsov, D.V. Lisin. EUV observations of CME-associated eruptive phenomena with the CORONAS-F/SPIRIT telescope/spectroheliograph. Coronal and Stellar Mass Ejections, IAU Symposium Proceedings of the International Astronomical Union 226, Held 13-17 September, Beijing, edited by K. Dere, J. Wang, and Y. Yan. Cambridge: Cambridge University Press, 2005, p. 21-26. V.N. Borovik, V.V. Grechnev, O.I. Bugaenko, S.A. Bogachev, I.Y. Grigorieva, S.V. Kuzin, S.V. Lesovoi, M.A. Livshits, A.A. Pertsov, G.V. Rudenko, V.A. Slemzin, A.I. Stepanov, K. Shibasaki, A.M. Uralov, V.G. Zandanov, I.A. Zhitnik. Observations of a Post-Eruptive Arcade on October 22, 2001 with CORONAS-F, other Spaceborne Telescopes, and in Microwaves. Coronal and Stellar Mass Ejections, IAU Symposium Proceedings of the International Astronomical Union 226, Held 13-17 September, Beijing, edited by K. Dere, J. Wang, and Y. Yan. Cambridge: Cambridge University Press, 2005, pp.108-109.

  29. V. Slemzin, S. Kuzin, S. Bogachev. TEMPORAL AND SPATIAL DYNAMICS OF CME-RELATED SOLAR STRUCTURES FROM EUV OBSERVATIONS WITH THE CORONAS-F/SPIRIT AND SOHO/EIT TELESCOPES. Proc. of the SPM-11 conference “The Dynamic Sun: Challenges for Theory and Observations”, Leuven, 11 - 16 September 2005 (in press). S.A Bogachev. COMPARISON OF AN EFFICIENCY OF FERMI ACCELERATION AND BETATRON ACCELERATION IN COLLAPSING MAGNETIC TRAPS. “The Dynamic Sun: Challenges for Theory and Observations”, Leuven, 11 - 16 September 2005 (in press).

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