Relationship between a soft X-ray long duration event and an intense metric noise storm

Details Relationship between a soft X-ray long duration event and an intense metric noise storm Relationship between a soft X-ray long duration event and an intense metric noise storm

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...101...33l&link_type=abstract

Astronomy and Astrophysics, vol. 101, no. 1, Aug. 1981, p. 33-38. Research supported by the Science Research Council of England

Astronomy and Astrophysics

Astronomy

61

Noise Storms, Solar Flares, Solar Prominences, Solar Radio Bursts, X Ray Astronomy, Electron Acceleration, Light Curve, Solar Corona, Solar Maximum Mission, Spatial Distribution

Scientific paper

An example of a soft X-ray long duration event associated with the onset of a metric noise storm is reported. The event was observed by the Nancay Radioheliograph, operating at a frequency of 169 MHz, and the soft X-ray Polychromator experiment on board the Solar Maximum Mission on March 30, 1980 in the solar active region 2363. The soft X-ray event was found to exhibit all the features of a classical long duration event, including an extensive system of loops forming over the site of a disappearing H-alpha filament, H-alpha ribbons at the loop footprints, a centrimetric rise and fall burst and a coronal white light loop transient. The radio event detected simultaneously also displayed typical noise storm characteristics, however was particularly intense, extended over an unusually wide frequency range, and was located in the northern leg of the loop transient. The possible association of the southern leg of the loop transient with the long duration event leads to the suggestion that it is the loop itself which provides the physical link between the two events.

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