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Millimeter Radio Evidence for Containment Mechanisms in Solar Flares

Published online by Cambridge University Press:  25 May 2016

E. B. Mayfield ,
K. P. White III  and
F. I. Shimabukuro
E. B. Mayfield
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.
K. P. White III
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.
F. I. Shimabukuro
Affiliation:
Aerospace Corp., El Segundo, Calif., U.S.A.

Abstract

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Recent theories of solar flares are reviewed with emphasis on the aspects of pre-flare heating. The heating evident at 3.3-mm wavelength is analyzed in the form of daily maps of the solar disk and synoptic maps compiled from the daily maps. It is found that isotherms defining antenna temperature enhancements of 340 K correspond in shape and location to facular areas reported by Waldmeier. Maximum enhancements occur over sunspots or near neutral lines of the longitudinal magnetic fields which indicates heating associated with chromospheric currents. These enhancements are correlated with flare importance number and are observed to increase during several days preceding flaring. This evidence for a containment mechanism in the chromosphere is collated with current theories of solar flares.

Type
Part IV Acceleration, Containement and Emission of High-Energy Flare Particles
Information
Symposium - International Astronomical Union , Volume 57: Coronal Disturbances , 1974 , pp. 447 - 460
Copyright
Copyright © Reidel 1974 

References

Chapman, G. A.: 1970, Solar Phys. 14, 315.Google Scholar
Coppi, B. and Friedland, A. B.: 1971, Astrophys. J. 169, 379.Google Scholar
Dodson, H. W. and Hedeman, E. R.: 1971, NOAA Report UAG-14, World Data Center A, U.S. Dept. of Commerce.Google Scholar
Furth, H. P., Killeen, J., and Rosenbluth, M. N.: 1963, Phys. Fluids 6, 459.Google Scholar
Jacobs, E. and King, H. E.: 1965, I.E.E.E. International Convention Record Part 5. Google Scholar
Jaggi, R. K.: 1963, J. Geophys. Res. 68, 4429.Google Scholar
King, H. E., Jacobs, E., and Stacey, J. M.: 1966, I.E.E.E. Trans. on Antennas and Propagation, A.P. 14, 82.Google Scholar
Linsky, J. L.: 1973, Solar Phys. 28, 409.Google Scholar
Mayfield, E. B., Higman, J., and Samson, C.: 1970, Solar Phys. 13, 372.Google Scholar
Parker, E. N.: 1963, Astrophys. J. Suppl. 8, 177.Google Scholar
Petschek, H. E.: 1964, in Hess, W. N. (ed.), AAS-NASA Symposium on the Physics of Solar Flares, Government Printing Office, Washington, D.C., p. 425.Google Scholar
Shimabukuro, F. I., Chapman, G. A., Mayfield, E. B., and Edelson, S.: 1973, Solar Phys. 30, 163.Google Scholar
Solar-Geophysical Data: 1967–1972, U.S. Dept. of Commerce, Boulder, Colo. Google Scholar
Sweet, P. A.: 1958, in Lehnert, B. (ed.), ‘Electromagnetic Phenomena in Cosmical Physics’, IAU Symp. 6, 123.Google Scholar
Syrovatskii, S. I.: 1969, in de Jager, C. and Švestka, Z. (eds.), ‘Solar Flares and Space Research’, COSPAR Symp., 346.Google Scholar
Waldmaier, M.: 1972, ‘Heliographic Maps of the Photosphere’, Publikationen der eidgenössischen Sternwarte Zürich. Google Scholar