Direct Observation of High-Speed Reconnection Outflows With SOHO/SUMER, TRACE and RHESSI

Details Direct Observation of High-Speed Reconnection Outflows With SOHO/SUMER, TRACE and RHESSI Direct Observation of High-Speed Reconnection Outflows With SOHO/SUMER, TRACE and RHESSI

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..415..447w&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

Scientific paper

Spectroscopic observations of a solar limb flare recorded by SUMER on SOHO reveal, for the first time, hot fast magnetic reconnection outflows in the corona. The observations from TRACE and RHESSI allow us to determine the location of magnetic reconnection region. We find that as the reconnection site rises across the SUMER spectrometer slit, significant blue- and red-shift signatures are observed in the Fe XIX line, reflecting upflows and downflows of hot plasma jets, respectively. With the projection effect corrected, the measured outflow speed is between about 900-3500 km/s, consistent with theoretical predictions. This study provides an important guidance to the future observation with Hinode/EIS.

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