Solar Physics

, Volume 282, Issue 2, pp 483–501 | Cite as

Wavelets, Intermittency and Solar Flare Hard X-rays 2. LIM Analysis of High Time Resolution BATSE Data

Article

Abstract

We apply local intermittency measure (LIM) analysis to 64 ms time resolved BATSE measurements of hard X-rays from several solar flares. LIM analysis yields information on the character of the processes giving rise to fluctuations in light curves, e.g. avalanche vs. cascade pictures. We present LIM scaleograms for several flares and summarise scaleogram morphological features. More detailed descriptions are given of the behaviour in the flare of 13 January 1992 (the well-known ‘Masuda flare’) and an interesting event on 22 November 1998. All flares display episodes of intermittency across a range of scales. LIM scaleogram features may be consistent with both ‘top-down’ and ‘bottom-up’ scenarios for the development of small-scale structure, sometimes within the same flare. Thus neither class of model captures the totality of the events in a flare.

Keywords

Avalanche models Hard X-rays Intermittency Solar flares Wavelets 

Notes

Acknowledgements

Solar physics research in the University of Glasgow is supported by a STFC Rolling Grant. We thank Richard Schwartz for advice on BATSE data, and Siming Liu for useful discussions. We also thank the referee for helpful comments.

References

  1. Argoul, F., Arneodo, A., Grasseau, G., Gagne, Y., Hopfinger, E.J.: 1989, Wavelet analysis of turbulence reveals the multifractal nature of the Richardson cascade. Nature 338, 51 – 53. ADSCrossRefGoogle Scholar
  2. Arzner, K., Guedel, M.: 2004, Are coronae of magnetically active stars heated by flares? III. Analytical distribution of superposed flares. Astrophys. J. 602, 363 – 376. ADSCrossRefGoogle Scholar
  3. Aschwanden, M.J.: 2002, Particle acceleration and kinematics in solar flares – A synthesis of recent observations and theoretical concepts (Invited Review). Space Sci. Rev. 101, 1 – 227. ADSCrossRefGoogle Scholar
  4. Aschwanden, M.J., Alexander, D.: 2001, Flare plasma cooling from 30 MK down to 1 MK modeled from Yohkoh, GOES, and TRACE observations during the Bastille Day event (14 July 2000). Solar Phys. 204, 91 – 120. ADSCrossRefGoogle Scholar
  5. Aschwanden, M.J., Schwartz, R.A., Alt, D.M.: 1995, Electron time-of-flight differences in solar flares. Astrophys. J. 447, 923 – 935. ADSCrossRefGoogle Scholar
  6. Aschwanden, M.J., Kliem, B., Schwarz, U., Kurths, J., Dennis, B.R., Schwartz, R.A.: 1998, Wavelet analysis of solar flare hard X-rays. Astrophys. J. 505, 941 – 956. ADSCrossRefGoogle Scholar
  7. Beck, C., Schlögl, F.: 1993, Thermodynamics of Chaotic Systems: An Introduction, Cambridge University Press, Cambridge. CrossRefGoogle Scholar
  8. Benz, A.O.: 1977, Spectral features in solar hard X-ray and radio events and particle acceleration. Astrophys. J. 211, 270 – 280. ADSCrossRefGoogle Scholar
  9. Brown, J.C., Turkmani, R., Kontar, E.P., MacKinnon, A.L., Vlahos, L.: 2009, Local re-acceleration and a modified thick target model of solar flare electrons. Astron. Astrophys. 508, 993 – 1000. ADSCrossRefGoogle Scholar
  10. Cargill, P.J., Vlahos, L., Turkmani, R., Galsgaard, K., Isliker, H.: 2006, Particle acceleration in a three-dimensional model of reconnecting coronal magnetic fields. Space Sci. Rev. 124, 249 – 259. ADSCrossRefGoogle Scholar
  11. Cheng, C.-C., Tandberg-Hanssen, E., Bruner, E.C., Orwig, L., Frost, K.J., Kenny, P.J., Woodgate, B.E., Shine, R.A.: 1981, Spatial and temporal structures of impulsive bursts from solar flares observed in UV and hard X-rays. Astrophys. J. Lett. 248, L39 – L43. ADSCrossRefGoogle Scholar
  12. Consolini, G., Chang, T.: 2002, Complexity, magnetic field topology, criticality, and metastability in magnetotail dynamics. J. Atmos. Solar-Terr. Phys. 64, 541 – 549. ADSCrossRefGoogle Scholar
  13. Dennis, B.R., Schwartz, R.A., Tolbert, A.K.: Access to BATSE solar flare data for the solar physics community. http://umbra.nascom.nasa.gov/batse/batse_archive.html.
  14. Dinkelaker, A.N., MacKinnon, A.L.: 2012, Wavelets, intermittency and solar flare hard X-rays 1. Local intermittency measure in cascade and avalanche scenarios. Solar Phys., doi: 101007/s1207-012-0152-0 (Paper 1). Google Scholar
  15. Farge, M.: 1992, Wavelet transforms and their applications to turbulence. Annu. Rev. Fluid Mech. 24, 395 – 457. MathSciNetADSCrossRefGoogle Scholar
  16. Fletcher, L., Hudson, H.S.: 2002, Spectral and spatial variations of flare hard X-ray footpoints. Solar Phys. 210, 307 – 321. ADSCrossRefGoogle Scholar
  17. Freeman, M.P., Watkins, N.W., Riley, D.J.: 2000, Evidence for a solar wind origin of the power law burst lifetime distribution of the AE indices. Geophys. Res. Lett. 27, 1087 – 1090. ADSGoogle Scholar
  18. Frisch, U.: 1995, Turbulence – The Legacy of A.N. Kolmogorov, 1st edn. Cambridge University Press, Cambridge, 120 – 194. MATHGoogle Scholar
  19. Galsgaard, K.: 2002, Flux braiding in a stratified atmosphere. In: Sawaya-Lacoste, H. (ed.) SOLMAG 2002. Proceedings of the Magnetic Coupling of the Solar Atmosphere Euroconference, ESA SP-505, 269 – 272. Google Scholar
  20. Galsgaard, K., Nordlund, Å.: 1996, Heating and activity of the solar corona 1. Boundary shearing of an initially homogeneous magnetic field. J. Geophys. Res. 101, 13445 – 13460. ADSCrossRefGoogle Scholar
  21. Galsgaard, K., Nordlund, Å.: 1997, Heating and activity of the solar corona. 3. Dynamics of a low beta plasma with three-dimensional null points. J. Geophys. Res. 102, 231 – 248. ADSCrossRefGoogle Scholar
  22. Georgoulis, M.K., Vlahos, L.: 1996, Coronal heating by nanoflares and the variability of the occurrence frequency in solar flares. Astrophys. J. Lett. 469, L135 – L138. ADSCrossRefGoogle Scholar
  23. Kane, S.R., Anderson, K.A.: 1970, Spectral characteristics of impulsive solar-flare X-rays ≳ 10 KeV. Astrophys. J. 162, 1003 – 1018. ADSCrossRefGoogle Scholar
  24. Kaufmann, P., Strauss, F.M., Laporte, C., Opher, R.: 1980, Evidence for quasi-quantization of solar flare mm-wave radiation. Astron. Astrophys. 87, 58 – 62. ADSGoogle Scholar
  25. Krucker, S., Battaglia, M., Cargill, P.J., Fletcher, L., Hudson, H.S., MacKinnon, A.L., Masuda, S., Sui, L., Tomczak, M., Veronig, A.L., Vlahos, L., White, S.M.: 2008, Hard X-ray emission from the solar corona. Astron. Astrophys. Rev. 16, 155 – 208. ADSCrossRefGoogle Scholar
  26. Lu, E.T., Hamilton, R.J.: 1991, Avalanches and the distribution of solar flares. Astrophys. J. Lett. 380, L89 – L92. ADSCrossRefGoogle Scholar
  27. MacKinnon, A.L., MacPherson, K.P., Vlahos, L.: 1996, Cellular automaton models of solar flare occurence. Astron. Astrophys. 310, L9 – L12. ADSGoogle Scholar
  28. MacPherson, K.P., MacKinnon, A.L.: 1999, Extended cellular automaton models of solar flare occurrence. Astron. Astrophys. 350, 1040 – 1050. ADSGoogle Scholar
  29. McAteer, R.T.J., Young, C.A., Ireland, J., Gallagher, P.T.: 2007, The bursty nature of solar flare x-ray emission. Astrophys. J. 662, 691 – 700. ADSCrossRefGoogle Scholar
  30. Priest, E.R., Forbes, T.G.: 2002, The magnetic nature of solar flares. Astron. Astrophys. Rev. 10, 313 – 377. ADSCrossRefGoogle Scholar
  31. Schrijver, C.J., Title, A.M.: 2011, Long-range magnetic couplings between solar flares and coronal mass ejections observed by SDO and STEREO. J. Geophys. Res. 116, A04108. ADSCrossRefGoogle Scholar
  32. Turkmani, R., Vlahos, L., Galsgaard, K., Cargill, P.J., Isliker, H.: 2005, Particle acceleration in stressed coronal magnetic fields. Astrophys. J. Lett. 620, L59 – L62. ADSCrossRefGoogle Scholar
  33. Turkmani, R., Cargill, P.J., Galsgaard, K., Vlahos, L., Isliker, H.: 2006, Particle acceleration in stochastic current sheets in stressed coronal active regions. Astron. Astrophys. 449, 749 – 757. ADSCrossRefGoogle Scholar
  34. Vlahos, L., Krucker, S., Cargill, P.: 2009, The solar flare: a strongly turbulent particle accelerator. In: Cargill, P., Vlahos, L. (eds.) Turbulence in Space Plasmas, Lecture Notes in Physics 778, Springer, Berlin, 157 – 221. CrossRefGoogle Scholar
  35. Warren, H.P., Warshall, A.D.: 2001, Ultraviolet flare ribbon brightenings and the onset of hard X-ray emission. Astrophys. J. Lett. 560, L87 – L90. ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  1. 1.Department of Physics, SUPAUniversity of StrathclydeGlasgowUK
  2. 2.SUPA School of Physics and AstronomyUniversity of GlasgowGlasgowUK

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