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Title: Current sheet of 4 November 2003 flares
Authors: Raymond, J C
Ciaravella, A
Keywords: Global solar flares;Reconnection;Coronal mass ejections;Frequency transfer;Current sheet
Issue Date: Oct-2010
Publisher: NISCAIR-CSIR, India
PACS No.: 96.60.qe;
Abstract: Reconnection current sheets are a central feature of models of solar flares and coronal mass ejections (CME) but they are still not understood. Ultraviolet spectra from the UVCS instrument aboard SOHO are combined with white light observations from MLSO to obtain the temperature, density, thickness and depth of the flare-CME current sheet that developed during the powerful flare on 4 November 2003. This paper summarizes the observations and the results. It was found that the thickness of the current sheet is far larger than expected from the Sweet-Parker picture of reconnection. It may be consistent with the region formed by slow-mode shocks in the Petschek picture, and it is probably consistent with models of reconnection in a turbulent layer such as that of Lazarian and Vishniac.
Page(s): 249-251
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.39(5) [October 2010]

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