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The Energy Release in Solar Flares: Implications of a Constant-Current Model

Published online by Cambridge University Press:  25 April 2016

D. B. Melrose
D. B. Melrose*
Affiliation:
School of Physics, University of Sydney, NSW 2006
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Abstract

A model is explored for energy release in solar flares that involves a constant coronal current. An emerging flux tube is assumed to carry a current I≲1012 A, and this current is assumed not to change during flare. Using a circuit model, explosive energy release is attributed to a rapid rise in the coronal resistance Rc, which must adjust to Rc = − Lc, with Lc the rate of change of the coronal inductance Lc, to ensure I = constant. In this model the total energy released in the corona is twice the change in the magnetic energy stored in the corona. It is argued that this energy is inadequate to power a large flare and the implications of this conclusion are discussed.

Type
Solar & Solar System
Information
Publications of the Astronomical Society of Australia , Volume 8 , Issue 3 , 1990 , pp. 286 - 288
Copyright
Copyright © Astronomical Society of Australia 1990

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References

Alfvén, H., 1977, Rev. Geophys. Space Phys., 15, 271.Google Scholar
Alfvén, H. and Carlqvist, P., 1967, Solar Phys., 1, 220.Google Scholar
Colgate, S. A., 1978, Astrophys. J., 221, 1068.CrossRefGoogle Scholar
Duijveman, A., Hoyng, P. and Ionson, J. A., 1981, Astrophys. J., 245, 721.Google Scholar
Gary, G. A., Moore, R. L., Hagyard, M. J. and Haisch, B. M., 1987, Astrophys. J., 314, 782.Google Scholar
Hénoux, J. C. and Somov, B. V., 1987, Astron. Astrophys., 185, 306.Google Scholar
Heyvaerts, J., 1974, Solar Phys., 38, 419.CrossRefGoogle Scholar
Kan, J. R., Akasofu, S.-I. and Lee, L. C, 1983, Solar Phys., 84, 153.CrossRefGoogle Scholar
Krall, K. R., Smith, J.B. Jr, Hagyard, M. J., West, E. A. and Cumings, N. P., 1982, Solar Phys., 79, 59.CrossRefGoogle Scholar
McClymont, A. N. and Fisher, G. H., 1989, in Waite, J. H., Burch, J. L. and Moore, R. L. (eds), Solar System Plasma Physics, Geophysical Monograph 54, American Geophysical Union (Washington D.C.), p. 219.Google Scholar
Melrose, D.B., 1987, Proc. Astron. Soc. Australia, 7, 6.Google Scholar
Melrose, D.B. and McClymont, A. N., 1987, Solar Phys., 113, 241.CrossRefGoogle Scholar
Melrose, D. B. and Khan, J. L, 1989, Astron. Astrophys., 219, 308.Google Scholar
Moreton, G. E. and Severny, A. B., 1968, Solar Phys., 3, 282.CrossRefGoogle Scholar
Spicer, D. S., 1982, Space Sci. Rev., 31, 351.Google Scholar
Spruit, H. C., 1981, Astron. Astrophys., 98, 155.Google Scholar
Sturrock, P. A., 1980, in Sturrock, P. A. (ed.), Solar Flares, Colorado Associated Press (Boulder), p. 412.Google Scholar
Xue, M. L. and Chen, J., 1983, Solar Phys., 84, 119.Google Scholar
Zuccarello, F., Burm, H., Kuperus, M., Raadu, M. and Spicer, D. S., 1987, Astron. Astrophys., 180, 218.Google Scholar