Coronal extension of flaring region magnetic fields inferred from high-resolution microwave and type III burst observations

Details Coronal extension of flaring region magnetic fields inferred from high-resolution microwave and type III burst observations Coronal extension of flaring region magnetic fields inferred from high-resolution microwave and type III burst observations

Aug 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...283l..71l&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 283, Aug. 15, 1984, p. L71-L74. Research supported

Astronomy and Astrophysics

Astronomy

15

Microwave Emission, Solar Corona, Solar Flares, Solar Magnetic Field, Solar Radio Emission, Type 3 Bursts, Centimeter Waves, Temporal Distribution, Very Large Array (Vla), X Ray Astronomy

Scientific paper

Observations of three solar radio bursts, obtained with the Very Large Array of the National Radio Astronomy Observatory at 6 cm wavelength, have been combined with meter observations from the Mark III Nancay Radioheliograph. There is a good correlation between solar activity observed at the two wavelength domains. A small change by about 10 sec in the centimetric burst location corresponds to a large change, by about 0.5 solar radius, in the related metric type III burst location. This indicates discrete injection/acceleration regions and the presence of very divergent magnetic fields. The bursts come from two distinct active regions. With two-dimensional spatial resolution, it is shown that, in this sample, each active region possesses a coronal extension that is separated from that of the neighboring active region.

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