✦ LIBER ✦

VLA observations of interacting flaring loops

✍ Scribed by M. R. Kundu; S. M. White; D. M. McConnell

Publisher: Springer
Year: 1991
Tongue: English
Weight: 922 KB
Volume: 134
Category: Article
ISSN: 0038-0938
DOI: 10.1007/bf00152651

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✦ Synopsis

We present 4.9 GHz observations of an impulsive radio burst observed at the Very Large Array on 1981 May 16. The flare occurred in a complex active region containing several spots. The radio burst lay at the edge of an active-region microwave source, close to a neutral line. The compact burst showed morphological evidence for the presence of two loops in the rise phase, with the subsequent burst peak lying between these loops. This suggests that interaction between the loops played some role in the initiation of the flare. The flare spectrum is consistent with thermal gyrosynchrotron emission. The main microwave peak was displaced from the nearest He kernels by about 10", but there is strong evidence for post-flare loops coincident with the He kernels during the later stages of the event.

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