Observation of solar flares at high resolution

Details Observation of solar flares at high resolution Observation of solar flares at high resolution

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.344..141c&link_type=abstract

In ESA, Solar Physics and Astrophysics at Interferometric Resolution p 141-143 (SEE N93-10901 01-90)

Astronomy and Astrophysics

Astrophysics

1

Chromosphere, High Resolution, Solar Flares, Solar Spectra, Temporal Resolution, Solar Observatories, Spatial Resolution, Spectroscopic Telescopes

Scientific paper

Some preliminary results of the observation of a flare performed with very good spatial resolution (6 to 7 inches) are presented. The flare occurred on 7 Jun. 1991 at about 13:43 UT in the NOAA region 6659, showing an unusual high activity. A small region, about 3 inches wide, shows strong blue shifts (of the order of the sound speed) in some metallic lines formed in the high photosphere, during the flare impulsive phase. These observations show the importance of having measurements at higher spatial and temporal resolution for an effective improvement of the knowledge of the fundamental dynamic of active regions and flares.

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