Abstract:
High resolution observations in the radio range from the ground and X-rays from satellites during the past few years have provided new insights into the nature of emission processes and energies of solar eruptions. It is becoming increasingly clear that the strength, evolution, and structure of magnetic fields play a fundamental role in the burst mechanisms in the corona. Magnetic changes that occur before solar flares provide important clues on the interaction between emerging coronal loops and existing two or more loops, resulting in magneitc reconnection and triggering the release of microwave and hard X-ray emission. In this overview, the recent results pertaining to some microwave and hard X-ray events are presented. Their interpretaion in terms of coronal physics is given. It is obviously clear that to remain in the forefront of research in solar physics in the next decade we have to consider seriously to set up dedicated high resolution multifrequency microwave observation facility and at the same time have our solar hard X-ray monitor payload in one of the Indian scientific satellites to be launched in the near future.
