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REVIEW OF KNOTS MOTIONS MEASUREMENTS IN SOLAR PROMINENCES IN SELECTED PAPERS

REVIEW OF KNOTS MOTIONS MEASUREMENTS IN SOLAR PROMINENCES IN SELECTED PAPERS. PART 1 (1954 – 1998). Rothschild, 1954. Rothschild, 1954. Rothschild, 1954. Rothschild, 1954. Palus, 1972. 3D analytic methods: Palus (1972) Makhmudov et al. (1980) Bellester and Kleczek (1983).

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REVIEW OF KNOTS MOTIONS MEASUREMENTS IN SOLAR PROMINENCES IN SELECTED PAPERS

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  1. REVIEW OF KNOTS MOTIONS MEASUREMENTS IN SOLAR PROMINENCES IN SELECTED PAPERS

  2. PART 1 (1954 – 1998)

  3. Rothschild, 1954

  4. Rothschild, 1954

  5. Rothschild, 1954

  6. Rothschild, 1954

  7. Palus, 1972

  8. 3D analytic methods: • Palus (1972) • Makhmudov et al. (1980) • Bellester and Kleczek (1983)

  9. Uddin et al. 1994

  10. Uddin et al. 1994

  11. REFERENCES 1954 Rothschild, Pecker, Roberts The Prominence of July 25, 1951, ApJ 121, 224 1970 McCabe, Fisher Ha Coronograph Observations of a Flare Spray, March 1, 1969, SoPh 14, 212 1972 Palus I. Kinematics of the Solar Prominences, Bull. Astr. Inst. Csl. 23, 60 1975 Rompolt Rotational Motions in Fine Solar Structures, Acta Univ. Wratisl. No 252 1980 Makhmudov, Nikolsky, Zhugzhda Motions in a Loop Prominence, SoPh 66, 89 1983 Ballester, Kleczek Kinematics of Solar Prominences, SoPh 87, 261 1990 Kim Fine Structure of Quiescent Prominence, Journ. Korean Astron. Soc. 22, 31 1991 Aurass, Kruger, Rompolt, Garczynska and 4 co-authors Radio signature and Ha limb features of the 1979 March and 1982 July 9 flares, Astron. Nachr. 312, 245 1993 Vrsnak, Ruzdjak, Rompolt, Rosa, Zlobec Kinematics and Evolution of Twist in the Eruptive Prominence of August 18, 1980, SoPh 146, 147 1994 Uddin, Gaur, Pande Evolution of the helical prominence of December 15, 1992, Bull. Astr. Soc. India 23, 159 1998 Rudawy, Madjarska Small-scale Structure in Loops and Prominences Threads, ASPC 150, 63

  12. THE END OF PART 1

  13. PART 2 (CONTEMPORARY PAPERS)

  14. 2008 Chen, Innes, Solanki SOHO/SUMER Observations of Prominence Oscillation Before Eruption Astro-ph (A&A)

  15. SUMER data: l = 1098-1138 A C I (1118.45 A) (~10000 K) SIII/SiIII (1113 A) (~50000 K) cadence = 169 s slit: 4” x 300” BBSO data: full-disc Ha images resolution = 1” Chen et al. 1991

  16. vflow = ~60 km/s vsurge = ~30 km/s

  17. surges: initially red shift vrad = +24 km/s then blue shift

  18. v = ~216 km/s

  19. 2D

  20. kink

  21. 2008 Berger et al. HINODE SOT Observations of Solar Quiescent Prominence Dynamics ApJ 676, 89 HINODE Solar Optical Telescope (SOT) Time cadence: 15-30 sec Spatial resolution: 0.16-0.27 arcsec Spectral range: H-alpha, Ca II H Long time observations

  22. 2006 Nov 30 N50 west limb Nearly perpendicular to the line of sight 5.8 h of observations Migration of northern end with velocity approx. 825 m/s (4 times velocity of supergranulaion)

  23. Downflows: velocity: 10 km/s lifetime: 10 mins width: 200-700 km vortices

  24. Upflows: constant velocity approx. 20 km/s always at the base of the structure accidentally initiated constant intensity fade into the prominence sheet at some heights

  25. Oscillations: Period: 20-40 mins 1-2 cycles Amplitude: 2-5 Mm Vertical propagation speed: approx.10 km/s

  26. Authors examined 13 QPs 7 vertical structure 4 mixed structure 2 horizontal structure Dark upflows: all vertical QPs one mixed QP Vertical QPs: constant motion, downflows, vortices, oscillations Horizontal QPs: relatively small motions

  27. Upflows: v = 20 km/s earlier doppler measurements of filaments: v = 3 km/s (Matres et al. 1981) v = 5 – 20 km/s (Zirker et al. 1998) „buoyant starting plumes” constant velocity => buoyancy / drag balance forces Tgas = 10 000 K v = 20 km/s drag coeff = 1 then Tplume = 60 000 K cooling time = approx 10 mins

  28. THE END OF PART 2 THE END OF SPEECH

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