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Energy Partition in Two Solar Flare/CME Events

Emslie, A. G. and Kucharek, H. and Dennis, B. R. and Gopalswamy, N. and Holman, G. D. and Share, G. H. and Vourlidas, A. and Forbes, T. G. and Gallagher, P. T. and Mason, G. M. and Metcalf, T. R. and Mewaldt, R. A. and Murphy, R. J. and Schwartz, R. A. and Zurbuchen, T. H. (2004) Energy Partition in Two Solar Flare/CME Events. Journal of Geophysical Research A, 109 (A10). Art. No. A10104. ISSN 0148-0227. doi:10.1029/2004JA010571.

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Using coordinated observations from instruments on the Advanced Composition Explorer (ACE), the Solar and Heliospheric Observatory (SOHO), and the Ramaty High Energy Solar Spectroscopic Imager (RHESSI), we have evaluated the energetics of two well-observed flare/CME events on 21 April 2002 and 23 July 2002. For each event, we have estimated the energy contents (and the likely uncertainties) of (1) the coronal mass ejection, (2) the thermal plasma at the Sun, (3) the hard X-ray producing accelerated electrons, (4) the gamma-ray producing ions, and (5) the solar energetic particles. The results are assimilated and discussed relative to the probable amount of nonpotential magnetic energy available in a large active region.

Item Type:Article
Related URLs:
URLURL TypeDescription
Vourlidas, A.0000-0002-8164-5948
Mason, G. M.0000-0003-2169-9618
Mewaldt, R. A.0000-0003-2178-9111
Additional Information:© 2004 by the American Geophysical Union. Received 30 April 2004; revised 12 July 2004; accepted 6 August 2004; published 23 October 2004. The Taos Workshop was supported in part by NASA and the Los Alamos National Laboratory. AGE was supported by NASA grant NAG5-207445 through the University of California, Berkeley. RJM and GHS were supported by NASA grants DPR W19746 and S13377G. TRM was supported in part by NASA grant NAG5-12466. The energetic particle work was supported by NASA grants NAS5-12929 at Caltech and the University of Maryland and by NASA grant NAS5-12929 at the University of New Hampshire. RAM appreciates the assistance of Mark Looper, Christina Cohen, and the availability of data from the ACE/EPAM instrument through the ACE Science Center. Shadia Rifai Habbal thanks Richard C. Canfield and another referee for their assistance in evaluating this paper.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
Subject Keywords:solar flares; coronal mass ejections; solar energetic particles; energetics; hard X rays; gamma rays
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory2004-03
Issue or Number:A10
Record Number:CaltechAUTHORS:20150323-140615297
Persistent URL:
Official Citation:Emslie, A. G., et al. (2004), Energy partition in two solar flare/CME events, J. Geophys. Res., 109, A10104, doi:10.1029/2004JA010571
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55979
Deposited By: Deborah Miles
Deposited On:24 Mar 2015 17:19
Last Modified:10 Nov 2021 20:53

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