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Advances in solar radio astronomyThe status of the observations and interpretations of the sun's radio emission covering the entire radio spectrum from millimeter wavelengths to hectometer and kilometer wavelengths is reviewed. Emphasis is given to the progress made in solar radio physics as a result of recent advances in plasma and radiation theory. It is noted that the capability now exists of observing the sun with a spatial resolution of approximately a second of arc and a temporal resolution of about a millisecond at centimeter wavelengths and of obtaining fast multifrequency two-dimensional pictures of the sun at meter and decameter wavelengths. A summary is given of the properties of nonflaring active regions at millimeter, centimeter, and meter-decameter wavelengths. The properties of centimeter wave bursts are discussed in connection with the high spatial resolution observations. The observations of the preflare build-up of an active region are reviewed. High spatial resolution observations (a few seconds of arc to approximately 1 arcsec) are discussed, with particular attention given to the one- and two-dimensional maps of centimeter-wavelength burst sources.
Document ID
19830042644
Document Type
Reprint (Version printed in journal)
Authors
Kundu, M. R. (Maryland, University College Park, MD, United States)
Date Acquired
August 11, 2013
Publication Date
December 1, 1982
Publication Information
Publication: Reports on Progress in Physics
Volume: 45
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF AST-81-08501
CONTRACT_GRANT: NSF ATM-81-03089
CONTRACT_GRANT: NGR-21-002-199
Distribution Limits
Public
Copyright
Other