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Positional characteristics of meter-decameter wavelength bursts associated with hard X-ray burstsIsolated and grouped type III bursts have been observed in temporal association with impulsive hard X-ray bursts in the 26-154 keV range, down to frequencies as low as 30 MHz and out to a distance of 3.1 solar radii from the disk center. The bursts occurred in regions whose electron density may have been as much as 20 times higher than that of the Newkirk-Saito model. The present observations indicate that electron acceleration/injection occurs over a region covering a wide range of magnetic field lines. It is noted that, of the two gradual hard X-ray bursts observed in association with type IV bursts, one was accompanied by a type II event, while the other was not, although both exhibited the same characteristics. It is suggested that the gradual burst associated with a type IV only involved electrons which are trapped in the plasmoid which produces the meter-decameter emission, while another fraction of the population is trapped in the low-lying loops which produce the hard X-ray and centimeter radiation.
Document ID
19820054848
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kundu, M. R.
(Maryland Univ. College Park, MD, United States)
Gergely, T. E.
(Maryland, University College Park, MD, United States)
Kane, S. R.
(California, University Berkeley, CA, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1982
Publication Information
Publication: Solar Physics
Volume: 79
Subject Category
Solar Physics
Accession Number
82A38383
Funding Number(s)
CONTRACT_GRANT: NSF AST-800-9058
CONTRACT_GRANT: NGR-21-002-199
CONTRACT_GRANT: NSF AST-79-0842
CONTRACT_GRANT: NAS5-25980
CONTRACT_GRANT: F19628-80-C-0208
Distribution Limits
Public
Copyright
Other

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