Regularized electron flux spectra in the 2002 July 23 solar flare

Piana, M., Massone, A. M., Kontar, E. P. , Emslie, A. G., Brown, J. C. and Schwartz, R. A. (2003) Regularized electron flux spectra in the 2002 July 23 solar flare. Astrophysical Journal, 595(2), L127 -L130. (doi:10.1086/378171)

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Publisher's URL: http://dx.doi.org/10.1086/378171

Abstract

By inverting the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) hard X-ray photon spectrum with the Tikhonov regularization algorithm, we infer the effective mean electron source spectrum for a time interval near the peak of the 2002 July 23 event. This inverse approach yields the smoothest electron flux spectrum consistent with the data while retaining real features, such as local minima, that cannot be found with forward model-fitting methods that involve only a few parameters. A significant dip in the recovered mean source electron spectrum near E = 55 keV is noted, and its significance briefly discussed.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Kontar, Professor Eduard and Brown, Professor John and Piana, Professor Michele and Massone, Dr Anna
Authors: Piana, M., Massone, A. M., Kontar, E. P., Emslie, A. G., Brown, J. C., and Schwartz, R. A.
Subjects:Q Science > QB Astronomy
Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astrophysical Journal
Publisher:American Astronomical Society
ISSN:0004-637X
ISSN (Online):1538-4357
Published Online:08 September 2003

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