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Space Science Reviews

, Volume 158, Issue 1, pp 5–41 | Cite as

Global Properties of Solar Flares

  • Hugh S. Hudson
Open Access
Article
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Abstract

This article broadly reviews our knowledge of solar flares. There is a particular focus on their global properties, as opposed to the microphysics such as that needed for magnetic reconnection or particle acceleration as such. Indeed solar flares will always remain in the domain of remote sensing, so we cannot observe the microscales directly and must understand the basic physics entirely via the global properties plus theoretical inference. The global observables include the general energetics—radiation in flares and mass loss in coronal mass ejections (CMEs)—and the formation of different kinds of ejection and global wave disturbance: the type II radio-burst exciter, the Moreton wave, the EIT “wave”, and the “sunquake” acoustic waves in the solar interior. Flare radiation and CME kinetic energy can have comparable magnitudes, of order 1032 erg each for an X-class event, with the bulk of the radiant energy in the visible-UV continuum. We argue that the impulsive phase of the flare dominates the energetics of all of these manifestations, and also point out that energy and momentum in this phase largely reside in the electromagnetic field, not in the observable plasma.

Keywords

Flares Coronal mass ejection 
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References

  1. M.D. Altschuler, G. Newkirk, Magnetic fields and the structure of the solar corona. I: Methods of calculating coronal fields. Sol. Phys. 9, 131–149 (1969). doi: 10.1007/BF00145734 ADSCrossRefGoogle Scholar
  2. J.J. Aly, On some properties of force-free magnetic fields in infinite regions of space. Astrophys. J. 283, 349–362 (1984). doi: 10.1086/162313 ADSCrossRefGoogle Scholar
  3. A. Asai, T. Yokoyama, M. Shimojo, K. Shibata, Downflow motions associated with impulsive nonthermal emissions observed in the 2002 July 23 solar flare. Astrophys. J. Lett. 605, 77–80 (2004). doi: 10.1086/420768 ADSCrossRefGoogle Scholar
  4. R.G. Athay, G.E. Moreton, Impulsive phenomena of the solar atmosphere. I. Some optical events associated with flares showing explosive phase. Astrophys. J. 133, 935 (1961). doi: 10.1086/147098 ADSCrossRefGoogle Scholar
  5. H.M. Bain, L. Fletcher, Hard X-ray emission from a flare-related jet. Astron. Astrophys. 508, 1443–1452 (2009). doi: 10.1051/0004-6361/200911876 ADSCrossRefGoogle Scholar
  6. K.S. Balasubramaniam, et al., On the origin of the solar Moreton wave of 2006 December 6. Astrophys. J. 723, 587–601 (2010) ADSCrossRefGoogle Scholar
  7. M. Battaglia, L. Fletcher, A.O. Benz, Observations of conduction driven evaporation in the early rise phase of solar flares. Astron. Astrophys. 498, 891–900 (2009). doi: 10.1051/0004-6361/200811196 ADSCrossRefGoogle Scholar
  8. D.A. Biesecker, D.C. Myers, B.J. Thompson, D.M. Hammer, A. Vourlidas, Solar phenomena associated with “EIT waves”. Astrophys. J. 569, 1009–1015 (2002). doi: 10.1086/339402 ADSCrossRefGoogle Scholar
  9. A. Bleybel, T. Amari, L. van Driel-Gesztelyi, K.D. Leka, Global budget for an eruptive active region. I. Equilibrium reconstruction approach. Astron. Astrophys. 395, 685–695 (2002). doi: 10.1051/0004-6361:20021332 ADSCrossRefGoogle Scholar
  10. J.L. Bougeret et al., S/WAVES: the radio and plasma wave investigation on the STEREO mission. Space Sci. Rev. 136, 487–528 (2008). doi: 10.1007/s11214-007-9298-8 ADSCrossRefGoogle Scholar
  11. J.C. Brown, The deduction of energy spectra of non-thermal electrons in flares from the observed dynamic spectra of hard X-ray bursts. Sol. Phys. 18, 489–502 (1971). doi: 10.1007/BF00149070 ADSCrossRefGoogle Scholar
  12. A. Bruzek, On the association between loop prominences and flares. Astrophys. J. 140, 746 (1964). doi: 10.1086/147969 ADSCrossRefGoogle Scholar
  13. J.T. Burkepile, A.J. Hundhausen, A.L. Stanger, O.C. St. Cyr, J.A. Seiden, Role of projection effects on solar coronal mass ejection properties: 1. A study of CMEs associated with limb activity. J. Geophys. Res. 109, 3103 (2004). doi: 10.1029/2003JA010149 CrossRefGoogle Scholar
  14. R.C. Canfield, T.R. Metcalf, K.T. Strong, D.M. Zarro, A novel observational test of momentum balance in a solar flare. Nature 326, 165 (1987). doi: 10.1038/326165a0 ADSCrossRefGoogle Scholar
  15. P.J. Cargill, Some implications of the nanoflare concept. Astrophys. J. 422, 381–393 (1994). doi: 10.1086/173733 ADSCrossRefGoogle Scholar
  16. P.J. Cargill, E.R. Priest, The heating of postflare loops. Astrophys. J. 266, 383–389 (1983). doi: 10.1086/160786 ADSCrossRefGoogle Scholar
  17. H. Carmichael, A process for flares. NASA Spec. Publ. 50, 451 (1964) ADSGoogle Scholar
  18. R.C. Carrington, Description of a singular appearance seen in the Sun on September 1, 1859. Mon. Not. R. Astron. Soc. 20, 13–16 (1859) ADSGoogle Scholar
  19. S. Chapman, J. Bartels, Geomagnetism (1940) Google Scholar
  20. C. Chifor, D. Tripathi, H.E. Mason, B.R. Dennis, X-ray precursors to flares and filament eruptions. Astron. Astrophys. 472, 967–979 (2007). doi: 10.1051/0004-6361:20077771 ADSCrossRefGoogle Scholar
  21. E.L. Chupp, H. Debrunner, E. Flueckiger, D.J. Forrest, F. Golliez, G. Kanbach, W.T. Vestrand, J. Cooper, G. Share, Solar neutron emissivity during the large flare on 1982 June 3. Astrophys. J. 318, 913–925 (1987). doi: 10.1086/165423 ADSCrossRefGoogle Scholar
  22. E.W. Cliver, N.B. Crosby, B.R. Dennis, Are solar gamma-ray-line flares different from other large flares? Astrophys. J. 426, 767–773 (1994). doi: 10.1086/174113 ADSCrossRefGoogle Scholar
  23. E.W. Cliver, D.F. Webb, R.A. Howard, On the origin of solar metric type II bursts. Sol. Phys. 187, 89–114 (1999) ADSCrossRefGoogle Scholar
  24. E.W. Cliver, B.R. Dennis, A.L. Kiplinger, S.R. Kane, D.F. Neidig, N.R. Sheeley Jr., M.J. Koomen, Solar gradual hard X-ray bursts and associated phenomena. Astrophys. J. 305, 920–935 (1986). doi: 10.1086/164306 ADSCrossRefGoogle Scholar
  25. S.A. Colgate, A phenomenological model of solar flares. Astrophys. J. 221, 1068–1083 (1978). doi: 10.1086/156111 ADSCrossRefGoogle Scholar
  26. A.N. Cox, Allen’s astrophysical quantities (2000) Google Scholar
  27. M.L. De Rosa et al., A critical assessment of nonlinear force-free field modeling of the solar corona for active region 10953. Astrophys. J. 696, 1780–1791 (2009). doi: 10.1088/0004-637X/696/2/1780 ADSCrossRefGoogle Scholar
  28. C. Delannée, Another view of the EIT wave phenomenon. Astrophys. J. 545, 512–523 (2000). doi: 10.1086/317777 ADSCrossRefGoogle Scholar
  29. B.R. Dennis, D.M. Zarro, The Neupert effect—what can it tell us about the impulsive and gradual phases of solar flares? Sol. Phys. 146, 177–190 (1993). doi: 10.1007/BF00662178 ADSCrossRefGoogle Scholar
  30. K.P. Dere et al., EIT and LASCO observations of the initiation of a coronal mass ejection. Sol. Phys. 175, 601–612 (1997). doi: 10.1023/A:1004907307376 ADSCrossRefGoogle Scholar
  31. H.W. Dodson, E.R. Hedeman, Major Hα flares in centers of activity with very small or no spots. Sol. Phys. 13, 401–419 (1970). doi: 10.1007/BF00153560 ADSCrossRefGoogle Scholar
  32. A. Donea, D.C. Braun, C. Lindsey, Seismic images of a solar flare. Astrophys. J. Lett. 513, 143–146 (1999). doi: 10.1086/311915 ADSCrossRefGoogle Scholar
  33. H. Elliot, A possible mechanism for solar flares, in Solar Flares and Space Research, ed. by C. de Jager, Z. Svestka (1969), p. 356 Google Scholar
  34. A.G. Emslie, B.R. Dennis, G.D. Holman, H.S. Hudson, Refinements to flare energy estimates: a followup to “Energy partition in two solar flare/CME events” by A.G. Emslie et al. J. Geophys. Res. 110, 11103 (2005). doi: 10.1029/2005JA011305 CrossRefGoogle Scholar
  35. W.C. Erickson, M.R. Kundu, M.J. Mahoney, T.E. Gergely, Determination of the decameter wavelength spectrum of the quiet sun. Sol. Phys. 54, 57–63 (1977). doi: 10.1007/BF00146425 ADSCrossRefGoogle Scholar
  36. F. Fárník, S.K. Savy, Soft X-ray pre-flare emission studied in Yohkoh-SXT images. Sol. Phys. 183, 339–357 (1998) ADSCrossRefGoogle Scholar
  37. G.H. Fisher, S.L. Hawley, An equation for the evolution of solar and stellar flare loops. Astrophys. J. 357, 243–258 (1990). doi: 10.1086/168911 ADSCrossRefGoogle Scholar
  38. L. Fletcher, H.S. Hudson, Impulsive phase flare energy transport by large-scale Alfvén waves and the electron acceleration problem. Astrophys. J. 675, 1645–1655 (2008). doi: 10.1086/527044 ADSCrossRefGoogle Scholar
  39. L. Fletcher, H.P. Warren, The energy release process in solar flares; constraints from TRACE observations, in Energy Conversion and Particle Acceleration in the Solar Corona, ed. by L. Klein. Lecture Notes in Physics, vol. 612, pp. 58–79. Springer, Berlin (2003) CrossRefGoogle Scholar
  40. T.G. Forbes, L.W. Acton, Reconnection and field line shrinkage in solar flares. Astrophys. J. 459, 330 (1996). doi: 10.1086/176896 ADSCrossRefGoogle Scholar
  41. T.G. Forbes, J.A. Linker, J. Chen, C. Cid, J. Kóta, M.A. Lee, G. Mann, Z. Mikić, M.S. Potgieter, J.M. Schmidt, G.L. Siscoe, R. Vainio, S.K. Antiochos, P. Riley, CME theory and models. Space Sci. Rev. 123, 251–302 (2006). doi: 10.1007/s11214-006-9019-8 ADSCrossRefGoogle Scholar
  42. K.J. Frost, B.R. Dennis, Evidence from hard X-rays for two-stage particle acceleration in a solar flare. Astrophys. J. 165, 655 (1971). doi: 10.1086/150932 ADSCrossRefGoogle Scholar
  43. P.T. Gallagher, B.R. Dennis, S. Krucker, R.A. Schwartz, A.K. Tolbert, RHESSI and trace observations of the 21 April 2002 x1.5 flare. Sol. Phys. 210, 341–356 (2002). doi: 10.1023/A:1022422019779 ADSCrossRefGoogle Scholar
  44. G.A. Gary, Plasma beta above a solar active region: rethinking the paradigm. Sol. Phys. 203, 71–86 (2001) ADSCrossRefGoogle Scholar
  45. H.R. Gilbert, A.G. Daou, D. Young, D. Tripathi, D. Alexander, The filament-Moreton wave interaction of 2006 December 6. Astrophys. J. 685, 629–645 (2008). doi: 10.1086/590545 ADSCrossRefGoogle Scholar
  46. N. Gopalswamy, S. Akiyama, S. Yashiro, Major solar flares without coronal mass ejections, in IAU Symposium, ed. by N. Gopalswamy, D.F. Webb. IAU Symposium, vol. 257 (2009), pp. 283–286. doi: 10.1017/S174392130902941X Google Scholar
  47. N. Gopalswamy, S. Yashiro, Y. Liu, G. Michalek, A. Vourlidas, M.L. Kaiser, R.A. Howard, Coronal mass ejections and other extreme characteristics of the 2003 October–November solar eruptions. J. Geophys. Res. 110, 9 (2005). doi: 10.1029/2004JA010958 Google Scholar
  48. J.A. Grayson, S. Krucker, R.P. Lin, A statistical study of spectral hardening in solar flares and related solar energetic particle events. Astrophys. J. 707, 1588–1594 (2009). doi: 10.1088/0004-637X/707/2/1588 ADSCrossRefGoogle Scholar
  49. P.C. Grigis, A.O. Benz, The spectral evolution of impulsive solar X-ray flares. Astron. Astrophys. 426, 1093–1101 (2004). doi: 10.1051/0004-6361:20041367 ADSCrossRefGoogle Scholar
  50. M. Güdel, X-ray astronomy of stellar coronae. Astron. Astrophys. 12, 71–237 (2004). doi: 10.1007/s00159-004-0023-2 Google Scholar
  51. Y. Hanaoka et al., Simultaneous observations of a prominence eruption followed by a coronal arcade formation in radio, soft X-rays, and H(alpha). Publ. Astron. Soc. Jpn. 46, 205–216 (1994) ADSGoogle Scholar
  52. I.G. Hannah, S. Christe, S. Krucker, G.J. Hurford, H.S. Hudson, R.P. Lin, RHESSI microflare statistics. II. X-ray imaging, spectroscopy, and energy distributions. Astrophys. J. 677, 704–718 (2008). doi: 10.1086/529012 ADSCrossRefGoogle Scholar
  53. R.A. Harrison, The nature of solar flares associated with coronal mass ejection. Astron. Astrophys. 304, 585 (1995) ADSGoogle Scholar
  54. K.L. Harvey, N.R. Sheeley, J.W. Harvey, He I 10830 Å observations of two-ribbon flare-like events associated with filament disappearances, in Solar-Terrestrial Predictions, vol. 2. Meudon, France, 18–22 June 1984, ed. by P.A. Simon et al. (1986), pp. 198–203 Google Scholar
  55. T. Hirayama, Theoretical model of flares and prominences. I: Evaporating flare model. Sol. Phys. 34, 323–338 (1974). doi: 10.1007/BF00153671 ADSCrossRefGoogle Scholar
  56. R. Hodgson, On a curious appearance seen in the sun. Mon. Not. R. Astron. Soc. 20, 15–16 (1859) ADSGoogle Scholar
  57. H. Hudson, L. Fletcher, S. Krucker, The white-light continuum in the impulsive phase of a solar flare. ArXiv e-prints (2010) Google Scholar
  58. H.S. Hudson, Thick-target processes and white-light flares. Sol. Phys. 24, 414–428 (1972). doi: 10.1007/BF00153384 MathSciNetADSCrossRefGoogle Scholar
  59. H.S. Hudson, A purely coronal hard X-ray event. Astrophys. J. 224, 235–240 (1978). doi: 10.1086/156370 ADSCrossRefGoogle Scholar
  60. H.S. Hudson, Observed variability of the solar luminosity. Annu. Rev. Astron. Astrophys. 26, 473–507 (1988). doi: 10.1146/annurev.aa.26.090188.002353 ADSCrossRefGoogle Scholar
  61. H.S. Hudson, Solar flares, microflares, nanoflares, and coronal heating. Sol. Phys. 133, 357–369 (1991). doi: 10.1007/BF00149894 ADSCrossRefGoogle Scholar
  62. H.S. Hudson, Implosions in coronal transients. Astrophys. J. Lett. 531, 75–77 (2000). doi: 10.1086/312516 ADSCrossRefGoogle Scholar
  63. H.S. Hudson, E.W. Cliver, Observing coronal mass ejections without coronagraphs. J. Geophys. Res. 106, 25199–25214 (2001). doi: 10.1029/2000JA904026 ADSGoogle Scholar
  64. H.S. Hudson, L.W. Acton, S.L. Freeland, A long-duration solar flare with mass ejection and global consequences. Astrophys. J. 470, 629 (1996). doi: 10.1086/177894 ADSCrossRefGoogle Scholar
  65. H.S. Hudson, G.H. Fisher, B.T. Welsch, Flare energy and magnetic field variations, in Subsurface and Atmospheric Influences on Solar Activity, ed. by R. Howe, R.W. Komm, K.S. Balasubramaniam, G.J.D. Petrie. Astronomical Society of the Pacific Conference Series, vol. 383 (2008), p. 221 Google Scholar
  66. H.S. Hudson, B. Haisch, K.T. Strong, Comment on ‘The solar flare myth’ by J.T. Gosling. J. Geophys. Res. 100, 3473–3477 (1995). doi: 10.1029/94JA02710 ADSCrossRefGoogle Scholar
  67. H.S. Hudson, C.J. Wolfson, T.R. Metcalf, White-light flares: a TRACE/RHESSI overview. Sol. Phys. 234, 79–93 (2006). doi: 10.1007/s11207-006-0056-y ADSCrossRefGoogle Scholar
  68. H.S. Hudson, L.W. Acton, T. Hirayama, Y. Uchida, White-light flares observed by Yohkoh. Publ. Astron. Soc. Jpn. 44, 77–81 (1992) ADSGoogle Scholar
  69. H.S. Hudson, K.T. Strong, B.R. Dennis, D. Zarro, M. Inda, T. Kosugi, T. Sakao, Impulsive behavior in solar soft X-radiation. Astrophys. J. Lett. 422, 25–27 (1994). doi: 10.1086/187203 ADSCrossRefGoogle Scholar
  70. H.S. Hudson, J.R. Lemen, O.C. St. Cyr, A.C. Sterling, D.F. Webb, X-ray coronal changes during halo CMEs. Geophys. Res. Lett. 25, 2481–2484 (1998). doi: 10.1029/98GL01303 ADSCrossRefGoogle Scholar
  71. H.S. Hudson, T. Kosugi, N.V. Nitta, M. Shimojo, Hard X-radiation from a fast coronal ejection. Astrophys. J. Lett. 561, 211–214 (2001). doi: 10.1086/324760 ADSCrossRefGoogle Scholar
  72. H.S. Hudson, J.I. Khan, J.R. Lemen, N.V. Nitta, Y. Uchida, Soft X-ray observation of a large-scale coronal wave and its exciter. Sol. Phys. 212, 121–149 (2003). doi: 10.1023/A:1022904125479 ADSCrossRefGoogle Scholar
  73. H.S. Hudson, A.L. MacKinnon, M.L. De Rosa, S.F.N. Frewen, Coronal radiation belts. Astrophys. J. Lett. 698, 86–89 (2009). doi: 10.1088/0004-637X/698/2/L86 ADSCrossRefGoogle Scholar
  74. G.J. Hurford, R.A. Schwartz, S. Krucker, R.P. Lin, D.M. Smith, N. Vilmer, First gamma-ray images of a solar flare. Astrophys. J. Lett. 595, 77–80 (2003). doi: 10.1086/378179 ADSCrossRefGoogle Scholar
  75. D.B. Jess, M. Mathioudakis, P.J. Crockett, F.P. Keenan, Do all flares have white-light emission? Astrophys. J. Lett. 688, 119–122 (2008). doi: 10.1086/595588 ADSCrossRefGoogle Scholar
  76. H. Ji, G. Huang, H. Wang, The relaxation of sheared magnetic fields: a contracting process. Astrophys. J. 660, 893–900 (2007). doi: 10.1086/513017 ADSCrossRefGoogle Scholar
  77. S.W. Kahler, Solar flares and coronal mass ejections. Annu. Rev. Astron. Astrophys. 30, 113–141 (1992) ADSCrossRefGoogle Scholar
  78. S.W. Kahler, The role of the big flare syndrome in correlations of solar energetic proton fluxes and associated microwave burst parameters. J. Geophys. Res. 87, 3439–3448 (1982). doi: 10.1029/JA087iA05p03439 ADSCrossRefGoogle Scholar
  79. G. Kanbach, D.L. Bertsch, C.E. Fichtel, R.C. Hartman, S.D. Hunter, D.A. Kniffen, P.W. Kwok, Y.C. Lin, J.R. Mattox, H.A. Mayer-Hasselwander, Detection of a long-duration solar gamma-ray flare on June 11, 1991 with EGRET on COMPTON-GRO. Astron. Astrophys. 97, 349–353 (1993) ADSGoogle Scholar
  80. S.R. Kane, K.A. Anderson, Spectral characteristics of impulsive solar-flare X-rays >10 keV. Astrophys. J. 162, 1003 (1970). doi: 10.1086/150732 ADSCrossRefGoogle Scholar
  81. S.R. Kane, R.F. Donnelly, Impulsive hard X-ray and ultraviolet emission during solar flares. Astrophys. J. 164, 151 (1971). doi: 10.1086/150826 ADSCrossRefGoogle Scholar
  82. P. Kaufmann, J. Raulin, A.M. Melo, E. Correia, J.E.R. Costa, C.G.G. de Castro, A.V.R. Silva, M. Yoshimori, H.S. Hudson, W.Q. Gan, D.E. Gary, P.T. Gallagher, H. Levato, A. Marun, M. Rovira, Solar submillimeter and gamma-ray burst emission. Astrophys. J. 574, 1059–1065 (2002). doi: 10.1086/341061 ADSCrossRefGoogle Scholar
  83. J.I. Khan, H. Aurass, X-ray observations of a large-scale solar coronal shock wave. Astron. Astrophys. 383, 1018–1031 (2002). doi: 10.1051/0004-6361:20011707 ADSCrossRefGoogle Scholar
  84. A.L. Kiplinger, Comparative studies of hard X-ray spectral evolution in solar flares with high-energy proton events observed at Earth. Astrophys. J. 453, 973 (1995). doi: 10.1086/176457 ADSCrossRefGoogle Scholar
  85. J.A. Klimchuk, Theory of coronal mass ejections, in Space Weather, ed. by P. Song, H. Singer, G. Siscoe. Geophysical Monograph, vol. 125 (Am. Geophys. Union, Washington, 2001), p. 143 Google Scholar
  86. A.G. Kosovichev, Properties of flares-generated seismic waves on the Sun. Sol. Phys. 238, 1–11 (2006). doi: 10.1007/s11207-006-0190-6 ADSCrossRefGoogle Scholar
  87. A.G. Kosovichev, V.V. Zharkova, Seismic response to solar flares: theoretical predictions, in Helioseismology. ESA Special Publication, vol. 376 (1995), p. 341 Google Scholar
  88. A.G. Kosovichev, V.V. Zharkova, X-ray flare sparks quake inside Sun. Nature 393, 317–318 (1998). doi: 10.1038/30629 ADSCrossRefGoogle Scholar
  89. A.G. Kosovichev, V.V. Zharkova, Magnetic energy release and transients in the solar flare of 2000 July 14. Astrophys. J. Lett. 550, 105–108 (2001). doi: 10.1086/319484 ADSCrossRefGoogle Scholar
  90. N.D. Kostiuk, S.B. Pikel’ner, Gas dynamics of a flare region heated by a flux of high-velocity electrons. Astron. Zh. 51, 1002–1016 (1974) ADSGoogle Scholar
  91. M. Kretzschmar, T.D. de Wit, W. Schmutz, S. Mekaoui, J. Hochedez, S. Dewitte, The effect of flares on total solar irradiance. Nat. Phys. 6, 690–692 (2010). doi: 10.1038/nphys1741 CrossRefGoogle Scholar
  92. S. Krucker, S.M. White, R.P. Lin, Solar flare hard X-ray emission from the high corona. Astrophys. J. Lett. 669, 49–52 (2007). doi: 10.1086/523759 ADSCrossRefGoogle Scholar
  93. S. Krucker, M. Battaglia, P.J. Cargill, L. Fletcher, H.S. Hudson, A.L. MacKinnon, S. Masuda, L. Sui, M. Tomczak, A.L. Veronig, L. Vlahos, S.M. White, Hard X-ray emission from the solar corona. Astron. Astrophys. 16, 155–208 (2008). doi: 10.1007/s00159-008-0014-9 ADSCrossRefGoogle Scholar
  94. L. Li, J. Zhang, On the brightening propagation of post-flare loops observed by TRACE. Astrophys. J. 690, 347–357 (2009). doi: 10.1088/0004-637X/690/1/347 ADSCrossRefGoogle Scholar
  95. R.P. Lin, H.S. Hudson, Non-thermal processes in large solar flares. Sol. Phys. 50, 153–178 (1976). doi: 10.1007/BF00206199 ADSCrossRefGoogle Scholar
  96. R.P. Lin, S. Krucker, G.J. Hurford, D.M. Smith, H.S. Hudson, G.D. Holman, R.A. Schwartz, B.R. Dennis, G.H. Share, R.J. Murphy, A.G. Emslie, C. Johns-Krull, N. Vilmer, RHESSI observations of particle acceleration and energy release in an intense solar gamma-ray line flare. Astrophys. J. Lett. 595, 69–76 (2003). doi: 10.1086/378932 ADSCrossRefGoogle Scholar
  97. C. Lindsey, D.C. Braun, Helioseismic imaging of sunspots at their antipodes. Sol. Phys. 126, 101–115 (1990). doi: 10.1007/BF00158301 ADSCrossRefGoogle Scholar
  98. C. Lindsey, A. Donea, Mechanics of seismic emission from solar flares. Sol. Phys. 251, 627–639 (2008). doi: 10.1007/s11207-008-9140-9 ADSCrossRefGoogle Scholar
  99. C. Liu, J. Lee, M. Karlický, D. Prasad Choudhary, N. Deng, H. Wang, Successive solar flares and coronal mass ejections on 2005 September 13 from NOAA AR 10808. Astrophys. J. 703, 757–768 (2009). doi: 10.1088/0004-637X/703/1/757 ADSCrossRefGoogle Scholar
  100. R. Liu, On the brightening propagation of post-flare loops observed by TRACE. Astrophys. J. 690, 347–357 (2009). doi: 10.1088/0004-637X/690/1/347 ADSCrossRefGoogle Scholar
  101. W.J. MacCombie, D.M. Rust, Physical parameters in long-decay coronal enhancements. Sol. Phys. 61, 69–88 (1979). doi: 10.1007/BF00155447 ADSCrossRefGoogle Scholar
  102. S.A. Matthews, L. van Driel-Gesztelyi, H.S. Hudson, N.V. Nitta, A catalogue of white-light flares observed by Yohkoh. Astron. Astrophys. 409, 1107–1125 (2003). doi: 10.1051/0004-6361:20031187 ADSCrossRefGoogle Scholar
  103. D.E. McKenzie, H.S. Hudson, X-ray observations of motions and structure above a solar flare arcade. Astrophys. J. Lett. 519, 93–96 (1999). doi: 10.1086/312110 ADSCrossRefGoogle Scholar
  104. J.M. McTiernan, S.R. Kane, J.M. Loran, J.R. Lemen, L.W. Acton, H. Hara, S. Tsuneta, T. Kosugi, Temperature and density structure of the 1991 November 2 flare observed by the Yohkoh soft X-ray telescope and hard X-ray telescope. Astrophys. J. Lett. 416, 91 (1993). doi: 10.1086/187078 ADSCrossRefGoogle Scholar
  105. T.R. Metcalf, D. Alexander, H.S. Hudson, D.W. Longcope, TRACE and Yohkoh observations of a white-light flare. Astrophys. J. 595, 483–492 (2003). doi: 10.1086/377217 ADSCrossRefGoogle Scholar
  106. R.A. Mewaldt, C.M.S. Cohen, D.K. Haggerty, G.M. Mason, M.L. Looper, T.T. von Rosenvinge, M.E. Wiedenbeck, Radiation risks from large solar energetic particle events, in American Institute of Physics Conference Series. American Institute of Physics Conference Series, vol. 932 (2007), pp. 277–282. doi: 10.1063/1.2778975 Google Scholar
  107. R.A. Mewaldt, C.M.S. Cohen, J. Giacalone, G.M. Mason, E.E. Chollet, M.I. Desai, D.K. Haggerty, M.D. Looper, R.S. Selesnick, A. Vourlidas, How efficient are coronal mass ejections at accelerating solar energetic particles, in American Institute of Physics Conference Series, ed. by G. Li, Q. Hu, O. Verkhoglyadova, G.P. Zank, R.P. Lin, J. Luhmann. American Institute of Physics Conference Series, vol. 1039 (2008), pp. 111–117. doi: 10.1063/1.2982431 Google Scholar
  108. N. Mittal, U. Narain, Initiation of CMEs: a review. J. Atmos. Sol.-Terr. Phys. 72, 643–652 (2010). doi: 10.1016/j.jastp.2010.03.011 CrossRefGoogle Scholar
  109. R.L. Moore, A.C. Sterling, H.S. Hudson, J.R. Lemen, Onset of the magnetic explosion in solar flares and coronal mass ejections. Astrophys. J. 552, 833–848 (2001). doi: 10.1086/320559 ADSCrossRefGoogle Scholar
  110. R. Moore, D.L. McKenzie, Z. Svestka, K.G. Widing, K.P. Dere, S.K. Antiochos, H.W. Dodson-Prince, E. Hiei, K.R. Krall, A.S. Krieger, The thermal X-ray flare plasma, in Skylab Solar Workshop II, ed. by P.A. Sturrock (1980), pp. 341–409 Google Scholar
  111. G.E. Moreton, H.E. Ramsey, Recent observations of dynamical phenomena associated with solar flares. Publ. Astron. Soc. Pac. 72, 357 (1960). doi: 10.1086/127549 ADSCrossRefGoogle Scholar
  112. D. Moses et al., EIT observations of the extreme ultraviolet Sun. Sol. Phys. 175, 571–599 (1997). doi: 10.1023/A:1004902913117 ADSCrossRefGoogle Scholar
  113. N. Narukage, H.S. Hudson, T. Morimoto, S. Akiyama, R. Kitai, H. Kurokawa, K. Shibata, Simultaneous observation of a Moreton wave on 1997 November 3 in Hα and soft X-rays. Astrophys. J. Lett. 572, 109–112 (2002). doi: 10.1086/341599 ADSCrossRefGoogle Scholar
  114. D.F. Neidig, E.W. Cliver, A catalog of solar white-light flares, including their statistical properties and associated emissions, 1859–1982. NASA STI/Recon Technical Report N 84, 24521 (1983) ADSGoogle Scholar
  115. W.M. Neupert, Comparison of solar X-ray line emission with microwave emission during flares. Astrophys. J. 153, 59 (1968) ADSCrossRefGoogle Scholar
  116. W.M. Neupert, Transient coronal extreme ultraviolet emission before and during the impulsive phase of a solar flare. Astrophys. J. 344, 504–512 (1989). doi: 10.1086/167819 ADSCrossRefGoogle Scholar
  117. W.M. Neupert, W. Gates, M. Swartz, R. Young, Observation of the solar flare X-ray emission-line spectrum of iron from 1.3 to 20 Å. Astrophys. J. Lett. 149, 79 (1967). doi: 10.1086/180061 ADSCrossRefGoogle Scholar
  118. N.V. Nitta, H.S. Hudson, Recurrent flare/CME events from an emerging flux region. Geophys. Res. Lett. 28, 3801–3804 (2001). doi: 10.1029/2001GL013261 ADSCrossRefGoogle Scholar
  119. T.J. Okamoto, H. Nakai, A. Keiyama, N. Narukage, S. UeNo, R. Kitai, H. Kurokawa, K. Shibata, Filament oscillations and Moreton waves associated with EIT waves. Astrophys. J. 608, 1124–1132 (2004). doi: 10.1086/420838 ADSCrossRefGoogle Scholar
  120. V. Ontiveros, A. Vourlidas, Quantitative measurements of coronal mass ejection-driven shocks from LASCO observations. Astrophys. J. 693, 267–275 (2009). doi: 10.1088/0004-637X/693/1/267 ADSCrossRefGoogle Scholar
  121. E. Orlando, N. Giglietto (Fermi large area telescope collaboration), Fermi-LAT observation of quiet solar emission. ArXiv e-prints (2009) Google Scholar
  122. E.N. Parker, Nanoflares and the solar X-ray corona. Astrophys. J. 330, 474–479 (1988). doi: 10.1086/166485 ADSCrossRefGoogle Scholar
  123. G.K. Parks, J.R. Winckler, The relation of energetic solar X-rays (hν>60 keV) and high frequency microwaves deduced from the periodic bursts of August 8, 1968 flare. Sol. Phys. 16, 186–197 (1971). doi: 10.1007/BF00154511 ADSCrossRefGoogle Scholar
  124. M. Pick, N. Vilmer, Sixty-five years of solar radioastronomy: flares, coronal mass ejections and Sun Earth connection. Astron. Astrophys. 16, 1–153 (2008). doi: 10.1007/s00159-008-0013-x ADSCrossRefGoogle Scholar
  125. J. Qiu, D.E. Gary, Flare-related magnetic anomaly with a sign reversal. Astrophys. J. 599, 615–625 (2003). doi: 10.1086/379146 ADSCrossRefGoogle Scholar
  126. J. Qiu, J. Lee, D.E. Gary, Impulsive and gradual nonthermal emissions in an X-class flare. Astrophys. J. 603, 335–347 (2004). doi: 10.1086/381353 ADSCrossRefGoogle Scholar
  127. A. Quesnel, B.R. Dennis, B. Fleck, C. Froelich, H.S. Hudson, The signature of flares in VIRGO total solar irradiance measurements. ArXiv e-prints (2010) Google Scholar
  128. R. Ramaty, N. Mandzhavidze, B. Kozlovsky, R.J. Murphy, Solar atmospheric abundances and energy content in flare accelerated ions from gamma-ray spectroscopy. Astrophys. J. Lett. 455, 193 (1995). doi: 10.1086/309841 ADSCrossRefGoogle Scholar
  129. S. Régnier, E.R. Priest, Nonlinear force-free models for the solar corona. I. Two active regions with very different structure. Astron. Astrophys. 468, 701–709 (2007). doi: 10.1051/0004-6361:20077318 ADSCrossRefGoogle Scholar
  130. A.C. Riddle, 80 MHz observations of a moving type IV solar burst, March 1, 1969. Sol. Phys. 13, 448–457 (1970). doi: 10.1007/BF00153563 ADSCrossRefGoogle Scholar
  131. E. Robbrecht, S. Patsourakos, A. Vourlidas, No trace left behind: STEREO observation of a coronal mass ejection without low coronal signatures. Astrophys. J. 701, 283–291 (2009). doi: 10.1088/0004-637X/701/1/283 ADSCrossRefGoogle Scholar
  132. D.M. Rust, Flares and changing magnetic fields. Sol. Phys. 25, 141–157 (1972). doi: 10.1007/BF00155753 ADSCrossRefGoogle Scholar
  133. D.M. Rust, E. Hildner, Expansion of an X-ray coronal arch into the outer corona. Sol. Phys. 48, 381–387 (1976). doi: 10.1007/BF00152003 ADSCrossRefGoogle Scholar
  134. K.H. Schatten, J.M. Wilcox, N.F. Ness, A model of interplanetary and coronal magnetic fields. Sol. Phys. 6, 442–455 (1969). doi: 10.1007/BF00146478 ADSCrossRefGoogle Scholar
  135. D.J. Schmit, S.E. Gibson, S. Tomczyk, K.K. Reeves, A.C. Sterling, D.H. Brooks, D.R. Williams, D. Tripathi, Large-scale flows in prominence cavities. Astrophys. J. Lett. 700, 96–98 (2009). doi: 10.1088/0004-637X/700/2/L96 ADSCrossRefGoogle Scholar
  136. P.W. Schuck, The photospheric energy and helicity budgets of the flux-injection hypothesis. ArXiv e-prints (2010) Google Scholar
  137. S. Serio, F. Reale, J. Jakimiec, B. Sylwester, J. Sylwester, Dynamics of flaring loops. I—Thermodynamic decay scaling laws. Astron. Astrophys. 241, 197–202 (1991) ADSGoogle Scholar
  138. N.R. Sheeley Jr., H.P. Warren, Y. Wang, The origin of postflare loops. Astrophys. J. 616, 1224–1231 (2004). doi: 10.1086/425126 ADSCrossRefGoogle Scholar
  139. A.Y. Shih, R.P. Lin, D.M. Smith, RHESSI observations of the proportional acceleration of relativistic >0.3 MeV electrons and >30 MeV protons in solar flares. Astrophys. J. Lett. 698, 152–157 (2009). doi: 10.1088/0004-637X/698/2/L152 ADSCrossRefGoogle Scholar
  140. T. Shimizu, Energetics and occurrence rate of active-region transient brightenings and implications for the heating of the active-region corona. Publ. Astron. Soc. Jpn. 47, 251–263 (1995) ADSGoogle Scholar
  141. M. Shimojo, S. Hashimoto, K. Shibata, T. Hirayama, H.S. Hudson, L.W. Acton, Statistical study of solar X-Ray jets observed with the Yohkoh soft X-Ray telescope. Publ. Astron. Soc. Jpn. 48, 123–136 (1996) ADSGoogle Scholar
  142. P.A. Sturrock (ed.), Solar Flares: A Monograph from Skylab Solar Workshop II, Skylab Solar Workshop II (1980) Google Scholar
  143. P.A. Sturrock, Maximum energy of semi-infinite magnetic field configurations. Astrophys. J. 380, 655–659 (1991). doi: 10.1086/170620 ADSCrossRefGoogle Scholar
  144. J.J. Sudol, J.W. Harvey, Longitudinal magnetic field changes accompanying solar flares. Astrophys. J. 635, 647–658 (2005). doi: 10.1086/497361 ADSCrossRefGoogle Scholar
  145. L. Sui, G.D. Holman, B.R. Dennis, Evidence for magnetic reconnection in three homologous solar flares observed by RHESSI. Astrophys. J. 612, 546–556 (2004). doi: 10.1086/422515 ADSCrossRefGoogle Scholar
  146. Z. Svestka, E.W. Cliver, History and basic characteristics of eruptive flares, in IAU Colloq. 133: Eruptive Solar Flares, ed. by Z. Svestka, B.V. Jackson, M.E. Machado. Lecture Notes in Physics, vol. 399 (Springer, Berlin, 1992), p. 1. doi: 10.1007/3-540-55246-4_70 CrossRefGoogle Scholar
  147. Z.F. Svestka, J.M. Fontenla, M.E. Machado, S.F. Martin, D.F. Neidig, Multi-thermal observations of newly formed loops in a dynamic flare. Sol. Phys. 108, 237–250 (1987). doi: 10.1007/BF00214164 ADSCrossRefGoogle Scholar
  148. M. Temmer, B. Vršnak, T. Žic, A.M. Veronig, Analytic modeling of the Moreton wave kinematics. Astrophys. J. 702, 1343–1352 (2009). doi: 10.1088/0004-637X/702/2/1343 ADSCrossRefGoogle Scholar
  149. R.J. Thomas, R.G. Teske, Solar soft X-rays and solar activity. II: Soft X-ray emission during solar flares. Sol. Phys. 16, 431–453 (1971). doi: 10.1007/BF00162486 ADSCrossRefGoogle Scholar
  150. B.J. Thompson, J.B. Gurman, W.M. Neupert, J.S. Newmark, J. Delaboudinière, O.C. St. Cyr, S. Stezelberger, K.P. Dere, R.A. Howard, D.J. Michels, SOHO/EIT observations of the 1997 April 7 coronal transient: possible evidence of coronal Moreton waves. Astrophys. J. Lett. 517, 151–154 (1999). doi: 10.1086/312030 ADSCrossRefGoogle Scholar
  151. D. Tripathi, V. Bothmer, H. Cremades, The basic characteristics of EUV post-eruptive arcades and their role as tracers of coronal mass ejection source regions. Astron. Astrophys. 422, 337–349 (2004). doi: 10.1051/0004-6361:20035815 ADSCrossRefGoogle Scholar
  152. S. Tsuneta, L. Acton, M. Bruner, J. Lemen, W. Brown, R. Caravalho, R. Catura, S. Freeland, B. Jurcevich, J. Owens, The soft X-ray telescope for the SOLAR-A mission. Sol. Phys. 136, 37–67 (1991). doi: 10.1007/BF00151694 ADSCrossRefGoogle Scholar
  153. Y. Uchida, Propagation of hydromagnetic disturbances in the solar corona and moreton’s wave phenomenon. Sol. Phys. 4, 30–44 (1968). doi: 10.1007/BF00146996 ADSCrossRefGoogle Scholar
  154. Z. Švestka, F. Fárník, H.S. Hudson, P. Hick, Large-scale active coronal phenomena in Yohkoh SXT images IV. Solar wind streams from flaring active regions. Sol. Phys. 182, 179–193 (1998). doi: 10.1023/A:1005033717284 ADSCrossRefGoogle Scholar
  155. G.H.J. van den Oord, The electrodynamics of beam/return current systems in the solar corona. Astron. Astrophys. 234, 496–518 (1990) ADSzbMATHGoogle Scholar
  156. J.E. Vernazza, E.H. Avrett, R. Loeser, Structure of the solar chromosphere. III—Models of the EUV brightness components of the quiet-sun. Astrophys. J. Suppl. Ser. 45, 635–725 (1981). doi: 10.1086/190731 ADSCrossRefGoogle Scholar
  157. A.M. Veronig, M. Karlický, B. Vršnak, M. Temmer, J. Magdalenić, B.R. Dennis, W. Otruba, W. Pötzi, X-ray sources and magnetic reconnection in the X3.9 flare of 2003 November 3. Astron. Astrophys. 446, 675–690 (2006). doi: 10.1051/0004-6361:20053112 ADSCrossRefGoogle Scholar
  158. A. Veronig, B. Vršnak, B.R. Dennis, M. Temmer, A. Hanslmeier, J. Magdalenić, Investigation of the Neupert effect in solar flares. I. Statistical properties and the evaporation model. Astron. Astrophys. 392, 699–712 (2002). doi: 10.1051/0004-6361:20020947 ADSCrossRefGoogle Scholar
  159. A. Vourlidas, P. Subramanian, K.P. Dere, R.A. Howard, Large-angle spectrometric coronagraph measurements of the energetics of coronal mass ejections. Astrophys. J. 534, 456–467 (2000). doi: 10.1086/308747 ADSCrossRefGoogle Scholar
  160. A. Vourlidas, S.T. Wu, A.H. Wang, P. Subramanian, R.A. Howard, Direct detection of a coronal mass ejection-associated shock in large angle and spectrometric coronagraph experiment white-light images. Astrophys. J. 598, 1392–1402 (2003). doi: 10.1086/379098 ADSCrossRefGoogle Scholar
  161. B. Vršnak, Terminology of large-scale waves in the solar atmosphere. EOS Trans. 86, 112–113 (2005). doi: 10.1029/2005EO110004 ADSCrossRefGoogle Scholar
  162. H. Wang, Evolution of vector magnetic fields and the August 27 1990 X-3 flare. Sol. Phys. 140, 85–98 (1992). doi: 10.1007/BF00148431 ADSCrossRefGoogle Scholar
  163. H. Wang, Study of white-light flares observed by Hinode. Res. Astron. Astrophys. 9, 127–132 (2009). doi: 10.1088/1674-4527/9/2/001 CrossRefADSGoogle Scholar
  164. Y. Wang, J. Zhang, A comparative study between eruptive X-class flares associated with coronal mass ejections and confined X-class flares. Astrophys. J. 665, 1428–1438 (2007). doi: 10.1086/519765 ADSCrossRefGoogle Scholar
  165. D.F. Webb, E.W. Cliver, N. Gopalswamy, H.S. Hudson, O.C. St. Cyr, The solar origin of the January 1997 coronal mass ejection, magnetic cloud and geomagnetic storm. Geophys. Res. Lett. 25, 2469–2472 (1998). doi: 10.1029/98GL00493 ADSCrossRefGoogle Scholar
  166. J.P. Wild, S.F. Smerd, A.A. Weiss, Solar bursts. Annu. Rev. Astron. Astrophys. 1, 291 (1963). doi: 10.1146/annurev.aa.01.090163.001451 ADSCrossRefGoogle Scholar
  167. M.J. Wills-Davey, G.D.R. Attrill, EIT waves: a changing understanding over a solar cycle. Space Sci. Rev. 149, 325–353 (2009). doi: 10.1007/s11214-009-9612-8 ADSCrossRefGoogle Scholar
  168. M.J. Wills-Davey, B.J. Thompson, Observations of a propagating disturbance in TRACE. Sol. Phys. 190, 467–483 (1999). doi: 10.1023/A:1005201500675 ADSCrossRefGoogle Scholar
  169. C.L. Wolff, Free oscillations of the sun and their possible stimulation by solar flares. Astrophys. J. 176, 833 (1972). doi: 10.1086/151680 ADSCrossRefGoogle Scholar
  170. L. Woltjer, A theorem on force-free magnetic fields. Proc. Natl. Acad. Sci. USA 44, 489–491 (1958) MathSciNetADSzbMATHCrossRefGoogle Scholar
  171. T.N. Woods, G. Kopp, P.C. Chamberlin, Contributions of the solar ultraviolet irradiance to the total solar irradiance during large flares. J. Geophys. Res. 111, 10 (2006). doi: 10.1029/2005JA011507 CrossRefGoogle Scholar
  172. Y. Yang, C.Z. Cheng, S. Krucker, R.P. Lin, W.H. Ip, A statistical study of hard X-ray footpoint motions in large solar flares. Astrophys. J. 693, 132–139 (2009). doi: 10.1088/0004-637X/693/1/132 ADSCrossRefGoogle Scholar
  173. S. Yashiro, S. Akiyama, N. Gopalswamy, R.A. Howard, Different power-law indices in the frequency distributions of flares with and without coronal mass ejections. Astrophys. J. Lett. 650, 143–146 (2006). doi: 10.1086/508876 ADSCrossRefGoogle Scholar
  174. D.M. Zarro, A.C. Sterling, B.J. Thompson, H.S. Hudson, N. Nitta, SOHO EIT observations of extreme-ultraviolet “dimming” associated with a halo coronal mass ejection. Astrophys. J. Lett. 520, 139–142 (1999). doi: 10.1086/312150 ADSCrossRefGoogle Scholar
  175. J. Zhang, K.P. Dere, R.A. Howard, M.R. Kundu, S.M. White, On the temporal relationship between coronal mass ejections and flares. Astrophys. J. 559, 452–462 (2001). doi: 10.1086/322405 ADSCrossRefGoogle Scholar

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Authors and Affiliations

  1. 1.SSL/UCBerkeleyUSA

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