Two 'negative bursts' with moving filaments, 19 May 1969

Details Two 'negative bursts' with moving filaments, 19 May 1969 Two 'negative bursts' with moving filaments, 19 May 1969

Feb 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...51..195s&link_type=abstract

Solar Physics, vol. 51, Jan.-Feb. 1977, p. 195-201.

Physics

1

Solar Activity, Solar Flares, Solar Radio Bursts, Sunspots, Flocculating, H Alpha Line, Microwave Emission, Solar Limb, Solar Magnetic Field, Solar Prominences

Scientific paper

The event of May 19, 1969, 1430 UT included a flare, radio burst, an active dark flocculus (ADF) or moving filament, and a microwave negative burst superposed on a gradual rise and fall. The second decrease at 2010 UT, originally studied by Covington (1973), is found to be part of a series of events that parallels that of the earlier negative burst. Each decrease is superposed on a long-enduring burst that begins simultaneously with the eruption of a prominence near the equator at east limb, and each is preceded by an ADF seen in H-alpha in a nearby active region. The similarity of these sequences strengthens the interpretation of the second event as a negative burst. The prominence eruptions, while not directly related to the negative bursts, indicate rapid changes in the large-scale structure of magnetic fields in the active regions.

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