Solar Physics

, Volume 181, Issue 2, pp 455–468 | Cite as

Joint NANCAY RADIOHELIOGRAPH AND LASCO OBSERVATIONS OF CORONAL MASS EJECTIONS – II. The 9 July 1996 Event

  • M. Pick
  • D. Maia
  • A. Kerdraon
  • R. Howard
  • G. E. Brueckner
  • D. J. Michels
  • S. Paswaters
  • R. Schwenn
  • P. Lamy
  • A. Llebaria
  • G. Simnett
  • L. J. Lanzerotti
  • H. Aurass
Article

Abstract

The development of a coronal mass ejection on 9 July 1996 has been analyzed by comparing the observations of the LASCO/SOHO coronagraphs with those of the Nancay radioheliograph. The spatial and temporal evolution of the associated radioburst is complex and involves a long-duration continuum. The analysis of the time sequence of the radio continuum reveals the existence of distinct phases associated with distinct reconnection processes and magnetic restructuring of the corona. Electrons are accelerated in association with these reconnection processes. An excellent spatial association is found between the position and extension of the radio source and the CME seen by LASCO. Furthermore, it is shown that the topology and evolution of the source of the radio continuum involve successive interactions between two systems of loops. These successive interactions lead to magnetic reconnection, then to a large scale coronal restructuring. Thus electrons of coronal origin may have access to the interplanetary medium in a large range of heliographic latitudes as revealed by the Ulysses observations.

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References

  1. Armstrong, T. P., Haggerty, D., Lanzerotti, L. J., MacLennan, C. G., Roelof, E. C. et al.: 1994, Geophys. Res. Lett. 21(17), 1747.Google Scholar
  2. Aurass, H.: 1997, in G. Trottet (ed.), 'Coronal Physics from Radio and Space Observations', Lecture Notes in Physics, Springer-Verlag, Berlin, p. 136.Google Scholar
  3. Brueckner, G. E. and 14 co-authors: 1995, Solar Phys. 162, 357.Google Scholar
  4. Buttighoffer, A., Pick, M., Raviart, A., Hoang, S., Lin, R. P., Simnett, G. M., Lanzerotti, L. J., and Bothmer, V.: 1996, Astron. Astrophys. 316, 499.Google Scholar
  5. Cliver, E. W.: 1995, in R. Ramaty, N. Mandzhavidze, and Xin-Min Hua (eds.), 'High Energy Solar Physics', AIP Conf. Proc. 374, 45.Google Scholar
  6. Chupp, E. L.: 1995, R. Ramaty, N. Mandzhavidze, and Xin-Min Hua (eds.), 'High Energy Solar Physics', AIP Conf. Proc. 374, 3.Google Scholar
  7. Crosby, N., Vilmer, N., Lund, N., Klein, K. L., and Sunayev, R.: 1996, Solar Phys. 167, 333.Google Scholar
  8. Dryer, M. and 23 co-authors: 1998, Solar Phys. 181, 159.Google Scholar
  9. Kerdraon, A. and Delouis, J. M.: 1996, in G. Trottet (ed.), 'Coronal Physics from Radio and Space Observations', Lecture Notes in Physics, Springer-Verlag, Berlin, p. 192.Google Scholar
  10. Kerdraon, A., Pick, M., Trottet, G., Sawyer, G., Illing, C., Wagner, R., and House, L.: 1983, Astrophys. J. 265, L19.Google Scholar
  11. Lantos, P., Kerdraon, A., Rapley, G. G., and Bentley, R. D.: 1981, Astron. Astrophys. 101, 33.Google Scholar
  12. Lanzerotti, L. J. L. et al.: 1992, Astron. Astrophys. 92, 207.Google Scholar
  13. Maia, D. and 11 co-authors: 1998, Solar Phys. 181, 121.Google Scholar
  14. Mann, G., Aurass, H., Paschke, J., and Voigt, W.: 1992, ESA J. P-348, 129.Google Scholar
  15. Manoharan, P. K., Van Driel-Gesztely, L., Pick, M., and Démoulin, P.: 1996, Astrophys. J. 468, L73.Google Scholar
  16. Pick, M.:1986, Solar Phys. 104, 19.Google Scholar
  17. Pick, M., Buttighoffer, A., Kerdraon, A., Armstrong, T. P., Roelof, E. C., Hoang, S., Lanzerotti, L. J. L., Simnett, G. M., and Lemen, J.: 1995, Space Sci. Rev. 72, 315.Google Scholar
  18. Pick, M. and 7 co-authors: 1997, ESA Publ., 5th SOHO Workshop, SP404, 601.Google Scholar
  19. Raoult, A., Pick, M., Dennis, B. R., and Kane, S.: 1985, Astrophys. J. 299, 1027.Google Scholar
  20. Raulin, J. P. and Klein, K. L.: 1994, Astron. Astrophys. 281, 556.Google Scholar
  21. Raulin, J. P., Willson, R. F., Kerdraon, A., Klein, K.-L., Lang, K. R., and Trottet, G.: 1991, Astron. Astrophys. 251, 298.Google Scholar
  22. Reames, D. V.: 1995, in R. Ramaty, N. Mandzhavidze, and Xin-Min Hua (eds.), 'High Energy Solar Physics', AIP Conf. Proc. 374, 35.Google Scholar
  23. Robinson, R. D.: 1985, in D. J. McLean and N. R. Labrum (eds.), Solar Radiophysics, p. 385.Google Scholar
  24. Švestka, Z., Dennis, B. R., Pick, M., Raoult, A., Rapley, C. G., Stewart, R. T., and Woodgate, B. E.: 1982, Solar Phys. 80, 143.Google Scholar
  25. Tsuneta, S. et al.: 1991, Solar Phys. 136, 37.Google Scholar
  26. Wagner, W. J. and MacQueen, R. M.: 1983, Astron. Astrophys. 120, 136.Google Scholar

Copyright information

© Kluwer Academic Publishers 1998

Authors and Affiliations

  • M. Pick
    • 1
  • D. Maia
    • 1
  • A. Kerdraon
    • 1
  • R. Howard
    • 2
  • G. E. Brueckner
    • 2
  • D. J. Michels
    • 2
  • S. Paswaters
    • 2
  • R. Schwenn
    • 3
  • P. Lamy
    • 4
  • A. Llebaria
    • 4
  • G. Simnett
    • 5
  • L. J. Lanzerotti
    • 6
  • H. Aurass
    • 7
  1. 1.DASOPObservatoire de MeudonMeudonFrance
  2. 2.Naval Research LaboratoryWashington D.C.U.S.A.
  3. 3.Max-Planck-Institut für AeronomieLindauGermany
  4. 4.Laboratoire d'Astronomie SpatialeMarseilleFrance
  5. 5.Space Research Group, School of Physics and Space ResearchUniversity of BirminghamBirminghamU.K.
  6. 6.Bell LaboratoriesLucent TechnologiesMurray HillU.S.A.
  7. 7.Astrophysikalisches InstitutePotsdamGermany

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