Very Large Array and SOHO Observations of Type I Noise Storms, Large-Scale Loops and Magnetic Restructuring in the Corona

摘要: Very Large Array (VLA) observations at 91-cm wavelength are combined with data from the SOHO EIT, MDI and LASCO used to study evolving coronal magnetic environment in which Type I noise storms large-scale loops occur. On one day, we have shown early evolution of a mass ejection (CME) projection disk by tracing its decimetric continuum emission. The passage CME an associated EUV event coincided increase brightness temperature extended loop located significant distance away displacement source during stage CME. We suggest that energy deposited into corona may caused local thermal or nonthermal electron density middle resulting transient loop. second observing consolidated known association between changes photosphere low storm enhancements overlying radio well advance flare same region. find anti-correlated bipolar appear be cancellation emergence flux underlying photosphere. In this case, fields led instabilities reconnection acceleration particles initiated sustained storm.