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On spatial variations of magnetic field and superthermal electron distribution in cm-radio burst source

Published online by Cambridge University Press:  01 September 2008

Leonid V. Yasnov  and
Marian Karlický
Leonid V. Yasnov
Affiliation:
Radiophysical Research Institute, St.-Petersburg State UniversityUl'yanovskaya 1, St.-Petersburg, 198504, Russia
Marian Karlický
Affiliation:
Astronomical Institute, Academy of Sciences of the Czech Republic251 65 Ondrejov, Czech Republic
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Abstract

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The paper presents a new method of an estimation of spatial variations of the magnetic field and superthermal electron distribution in solar cm-radio burst sources. The method is based on the analysis of several burst spectra recorded in the different moments of time and on the minimization of the difference between the theoretical and observed radio fluxes. It is found that the measure of the spatial variations of superthermal electron distribution in the radio source is always greater than that for the magnetic field. In most cases this measure has a minimum at the impulsive phase of cm-radio bursts.

Keywords

Sun: radio radiation Methods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S257: Universal Heliophysical Processes , September 2008 , pp. 353 - 356
Copyright
Copyright © International Astronomical Union 2009

References

Bastian, T. S., Benz, A. O., & Gary, D. E. 1998, ARAA, 36, 131.CrossRefGoogle Scholar
Böhme, A., Fürstenberg, F., Hildebrandt, J., Saal, O., Krüger, A., Hoyng, P., & Stevens, G. A. 1977, Solar Phys., 53, 139CrossRefGoogle Scholar
Brown, J. C., Craig, I. J. D., & Melrose, D. B. 1983, Ap&SS, 92, 105Google Scholar
Brown, J. C., Emslie, A. G., Holman, G. D., Johns-Krull, C. M., Kontar, E. P., Lin, R. P., Massone, A. M., & Piana, M. 2006, ApJ, 643, 523CrossRefGoogle Scholar
Dulk, G. A. 1985, ARAA, 23, 169CrossRefGoogle Scholar
Dulk, G. A. & Marsh, K. A. 1982, ApJ, 259, 350CrossRefGoogle Scholar
Kontar, E. P., Piana, M., Massone, A. M., Emslie, A. G., & Brown, J. C. 2004, Solar Phys., 225, 293CrossRefGoogle Scholar
Minoshima, T., Yokoyama, T., & Mitani, N. 2008, ApJ, 673, 598CrossRefGoogle Scholar
Nindos, A., White, S. M., Kundu, M. R., & Gary, D. E. 2000, ApJ, 533, 1053CrossRefGoogle Scholar
Prato, M., Piana, M., Brown, J. C., Emslie, A. G., Kontar, E. P., & Massone, A. M. 2006, Solar Phys., 237, 61CrossRefGoogle Scholar
Rust, D. M. 1972, Solar Phys., 25, 141CrossRefGoogle Scholar
Solar Geophysical Data 1968-1972, NOAA, Boulder, USAGoogle Scholar
White, S. M., Kundu, M. R., Garaimov, V. I., Yokoyama, T., & Sato, J. 2002, ApJ, 576, 505CrossRefGoogle Scholar
Wilson, R. F. 1993, ApJ, 413, 798CrossRefGoogle Scholar