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On the role of the magnetic configuration of flares for production of type III solar radio bursts

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Abstract

This paper investigates the possibility that the particular location of flare production sites in an active region is intimately connected to the production of type III radio bursts as well as centimetric and hard X-ray events.

For the few active regions analysed (viz. McMath 8863, 8905, 8907 and 8921) it is shown that even a crude statistical test is sufficient in revealing significant differences concerning the emissions of these radiations by flares located in various flare production sites. In particular, flares located outside the general bipolar pattern of the active region are characterized by a higher type III flare association rate (⩾ 50 %) than those taking place inside of it (⩽ 20 %). Centimetric and hard X-ray events are more likely to be expected in connection with flares located inside strong magnetic fields arising from well developed sunspots. Such results are pointing out that the concept of ‘flare production sites’ is important not only in relation with the Hα flare activity but also in relation with the non-thermal emissions accompanying the flares.

Probably this is due to changing magnetic configuration from one flare site to the other.

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References

  • Alvarez, H., Haddock, F., and Lin, R. P.: 1972, Solar Phys. 26, 468.

    Google Scholar 

  • Avignon, Y., Martres, M. J., and Pick, M.: 1964, Ann. Astrophys. 27, 23.

    Google Scholar 

  • Axisa, F., Martres, M. J., Pick, M., and Soru-Escaut, I.: 1973a, Solar Phys. 29, 163.

    Google Scholar 

  • Axisa, F., Martres, M. J., Pick, M., and Soru-Escaut, I: 1973b, in R. Ramaty and R. G. Stone (eds.), High Energy Phenomena on the Sun, NASA Symposium, p. 615.

  • Dodson, H. W. and Hedeman, E. R.: 1964, Planetary Space Sci. 12, 393.

    Google Scholar 

  • Frank, L. A. and Gurnett, D. A.: 1972, Solar Phys. 27, 446.

    Google Scholar 

  • Kane, S. R.: 1973, Solar Phys. 27, 174.

    Google Scholar 

  • Kane, S R. and Winckler, J. R.: 1969, An Atlas of 10–50 keV Solar X-Rays Observed by the OGO Satellites, Univ. Minnesota C.R. 134.

  • Kuiper, T. B. M. and Pasachoff, J. M.: 1973, Solar Phys. 28, 187.

    Google Scholar 

  • Lin, R. P.: 1970, Solar Phys. 15, 453.

    Google Scholar 

  • Lin, R. P.: 1973, Solar Non-Relativistic Electrons, preprint.

  • Lin, R. P., Evans, L. G., and Fain berg, J.: 1973, Astrophys. Letters (to be published).

  • Loughead, R. E., Roberts, J. A., and McCabe, M. K.: 1957, Australian J. Phys. 10, 483.

    Google Scholar 

  • Malville, J. M.: 1962, Astrophys. J. 135, 834.

    Google Scholar 

  • Martres, M. J., Michard, R., and Soru-Iscovici, I.: 1966, Ann. Astrophys. 29, 245.

    Google Scholar 

  • Martres, M. J., Michard, R., Soru-Iscovici, I., and Tsap, T.: 1968, Solar Phys. 5, 187.

    Google Scholar 

  • Martres, M. J., Pick, M., Soru-Escaut, I., and Axisa, F.: 1972, Nature Phys. Sci. 236, 63, 25.

    Google Scholar 

  • Mercier, C.: 1973, Solar Phys. 33, 177.

    Google Scholar 

  • Michard, R.: 1970, in R. Howard (ed.), ‘Solar Magnetic Fields’, IAU Symp. 43, 359.

  • Michard, R. and Rayrole, J.: 1965, in R. Lüst (ed.), ‘Stellar and Solar Magnetic Fields’, IAU Symp. 22, 170.

  • Palmer, I. D. and Lin, R. P.: 1973, in R. Ramaty and R. G. Stone (eds.), High Energy Phenomena on the Sun, NASA Symposium, p. 594.

  • Piddington, J. H.: 1970, Cosmic Electrodynamics, Interscience Publishers, New York.

    Google Scholar 

  • Pneuman, G. W.: 1968, Solar Phys. 3, 578.

    Google Scholar 

  • Quarterly Bulletin on Solar Activity (Eidgen. Sternwarte, Zürich).

  • Rosenberg, H.: 1973, Instabilities in the Solar Corona, Thesis, Utrecht University.

  • Rust, D. M.: 1970, in E. Howard (ed.), ‘Solar Magnetic Fields’, IAU Symp. 43, 33.

  • Rust, D. M.: 1972, Solar Phys. 25, 141.

    Google Scholar 

  • Simon, P.: 1962, Ann. Astrophys. 20, 12.

    Google Scholar 

  • Sturrock, P. A. and Smith, S. M.: 1968, Solar Phys. 5, 87.

    Google Scholar 

  • Tlamicha, A. and Takakura, T.: 1963, Nature 200, 999.

    Google Scholar 

  • Wild, J. P. and Smerd, S. F.: 1972, Ann. Rev. Astron. Astrophys. 10, 159.

    Google Scholar 

  • Wild, J. P., Roberts, J. A., and Murray, J. D.: 1954, Nature 173, 532.

    Google Scholar 

  • Wild, J. P., Sheridan, K. V., and Neylan, A. A.: 1959, Australian J. Phys. 12, 369.

    Google Scholar 

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Authors and Affiliations

  1. Service d'Electronique Physique, Centre d'Etudes Nucléaires de Saclay, France

    F. Axisa

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  1. F. Axisa
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Equipe de recherche Associée du CNRS no. 306.

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Axisa, F. On the role of the magnetic configuration of flares for production of type III solar radio bursts. Sol Phys 35, 207–224 (1974). https://doi.org/10.1007/BF00156968

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  • DOI: https://doi.org/10.1007/BF00156968

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