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Paper: Characteristics of the Nonthermal Velocity Signature Observed in the Impulsive Phase of the 2007 May 19 Flare
Volume: 415, The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding
Page: 459
Authors: Hara, H.; Watanabe, T.; Bone, L. A.; Culhane, J. L.; van Driel-Gesztelyi, L.; Young, P. R.
Abstract: The Hinode EUV Imaging Spectrometer (EIS) observed a long duration flare with a weak impulsive phase that appears to conform to the standard two-ribbon flare reconnection model. EIS scanned the flare site during the impulsive phase and observed Fe XXIII and Fe XXIV line emission that closely followed the flare hard X-ray emission while the line profiles showed significant non-thermal broadening. We suggest that a shock originating at the reconnection site which sweeps up and heats the coronal plasma can account for our observations.
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