Microwave, soft and hard X-ray imaging observations of two solar flares

Details Microwave, soft and hard X-ray imaging observations of two solar flares Microwave, soft and hard X-ray imaging observations of two solar flares

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...132..241k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 132, no. 2, March 1984, p. 241-252. Research supported by the Ministry for Edu

Astronomy and Astrophysics

Astrophysics

22

Solar Flares, Solar Radio Emission, Solar X-Rays, Centimeter Waves, Correlation, Microwave Imagery, Very Large Array (Vla), X Ray Imagery

Scientific paper

A set of microwave and hard X-ray observations of two flares observed simultaneously with the Very Large Array (VLA) and the Solar Maximum Mission Hard X-ray Imaging Spectrometer (SMM-HXIS) are presented. The LVA was used at 6 cm to map the slowly varying and burst components in three neighboring solar active regions (Boulder Nos. 2522, 2530, and 2519) from approximately 14:00 UT until 01:00 UT on June 24-25, 1980. Six microwave bursts less than 30 sfu were observed, and for the strongest of these, two-dimensional 'snapshot' (10 s) maps with spatial resolution of 5 in. were synthesized. HXIS data show clear interconnections between regions 2522 and 2530. The X-ray observations present a global picture of flaring activity, while the VLA data show the complexity of the small magnetic structures associated with the impulsive phase phenomena. It is seen that energy release did not occur in a single isolated magnetic structure, but over a large area of intermingled loop structures.

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