VLA Decimetric Observations of EUV Transient Events Detected by SOHO and TRACE

Willson and Kankelborg, Proc. 8th SOHO Workshop, "Plasma Dynamics and Diagnostics in the Solar Transition Region and Corona," Paris, France, 22-25 June 1999 (ESA SP-446, October 1999, p. 715)

Abstract

We discuss the results of recent collaborative investigations of the Sun that combine Very Large Array (VLA) images at 91.6 cm wavelength with SOHO/EIT and TRACE EUV spectroheliograms at several wavelengths. The main objective of these observations was to investigate the spatial and temporal relationship between nonthermal decimetric burst activity and small-scale transient EUV events in active regions. Our VLA 91 cm observations show changes in the intensity of overlying Type I noise storms a few minutes after five of seven transient brightenings observed by SOHO and TRACE. This suggests that these evolving EUV sources may have played a role in the production of nonthermal electrons eventually seen in the noise storm emission at greater heights.