Characteristics of the Nonthermal Velocity Signature Observed in the Impulsive Phase of the 2007 May 19 Flare

Details Characteristics of the Nonthermal Velocity Signature Observed in the Impulsive Phase of the 2007 May 19 Flare Characteristics of the Nonthermal Velocity Signature Observed in the Impulsive Phase of the 2007 May 19 Flare

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..415..459h&link_type=abstract

The Second Hinode Science Meeting: Beyond Discovery-Toward Understanding ASP Conference Series, Vol. 415, proceedings of a meeti

Astronomy and Astrophysics

Astronomy

1

Scientific paper

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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