Abstract
The spatial characteristics of microwave bursts are discussed in relation to impulsive and post-burst phases. The existence of two components — a gradual and another spiky — in the impulsive phase is discussed from the WSRT high time and spatial resolution observations. Using the WSRT data, evidence is presented for homologous flares at 6 cm, from the similarity of their spatial structure and their temporal evolution. Preflare changes in microwave active regions are presented and their interpretations in terms of newly emerging flux at the flare site are discussed. High spatial resolution observations of the structure of microwave flaring loops and their interpretation in terms of arcades of loops as the sites of primary energy release are presented. Theoretical interpretation of the confinement of microwave producing energetic electrons in the coronal part of loops is discussed. The relative timing of the peaks of impulsive hard X-ray and microwave burst is discussed. Possible diagnostics of impulsive phase onsets from cm-λ polarization data are presented, and the role of the emergence of new flux and of the current sheet formed between closed loops in producing impulsive energy release at centimeter wavelengrths are analyzed.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Alissandrakis, C. E. and Kundu, M. R.: 1978, Ap. J. 222, 342.
Alissandrakis, C. E. and Kundu, M. R.: 1983, in preparation.
Brown, J. C., Melrose, D. B., and Spicer, D.: 1979, Ap. J. 228, 592.
Holman, G. D., Kundu, M. R., and Papadopoulos, K.: 1982, Ap. J. 257, 354.
Holman, G. D., Kundu, M. R., and Dennis, B. R.: 1983, in preparation.
Kai, K., Kosugi, T., and Nakajima, H.: 1982, 75, 331.
Kattenberg, A. and Allart, M.: 1982, Ap. J., in press.
Kundu, M. R.: 1959, Ann. d’Ap. 22, 1.
Kundu, M. R.: 1965, “Solar Radio Astronomy” (John Wiley-In ter science, New York).
Kundu, M. R., Alissandrakis, C. E., Bregman, J. and Hin, A.: 1977, Ap. J. 213, 278.
Kundu, M. R. and Vlahos, L.: 1979, Ap. J. 232, 595.
Kundu, M. R.: 1981, Proc. SMY Symposium Workshop, Crimea, p. 24.
Kundu, M. R., Schmahl, E. J., and Velusamy, T.: 1982a, Ap. J. 253, 963.
Kundu, M. R., Schmahl, E. J., Velusamy, T. and Vlahos, L.: 1982b, Astron. Astrophys. 108, 188.
Marsh, K. and Hurford, G. J.: 1980, Ap. J. 240, L111.
Marsh, K, Hurford, G. J. and Zirin, H.: 1980, Proc. I.A.U. Symp. No. 86 “Radio Physics of the Sun” (ed. M. R. Kundu and T. E. Gergely ), p. 191.
Spicer, D.: 1977, Solar Phys. 53, 305.
Vlahos, L., and Papadopoulos, K.: 1979, Ap. J. 233, 717.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1983 D. Reidel Publishing Company, Dordrecht, Holland
About this paper
Cite this paper
Kundu, M.R. (1983). Spatial Characteristics of Microwave Bursts. In: Kane, S.R., Uchida, Y., Tanaka, K., Hudson, H.S. (eds) Recent Advances in the Understanding of Solar Flares. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-7228-5_23
Download citation
DOI: https://doi.org/10.1007/978-94-009-7228-5_23
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-7230-8
Online ISBN: 978-94-009-7228-5
eBook Packages: Springer Book Archive