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Solar noise storms - The polarization of storm Type III and related burstsThe spectral and polarization characteristics of 19 noise storms that occurred during 1976-1982 are reported. All components of the storms - Type I bursts and continuum, storm Type III bursts, and fine structures such as reverse drift pairs - are found to have the same sense of circular polarization. While the degree of polarization p of Type I bursts and continuum is generally greater than or approximately equal to 0.5, that of storm Type III bursts is almost always less than 0.5. Two set of storm Type III bursts stand out: one with less than or approximately equal to 0.2 and another with greater than or approximately equal to 0.3. Because these sets respectively have degrees of polarization so similar to those of fundamental (F) the harmonic (H) components of non-storm F - H pairs, it is deduced that storm Type III bursts are due sometimes to fundamental plasma radiation and sometimes to harmonic. However, F - H pairs are extremely rare among storm Type III bursts.
Document ID
19840050421
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dulk, G. A.
(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping, New South Wales, Australia; Colorado, University Boulder, CO, United States)
Suzuki, S.
(Colorado Univ. Boulder, CO, United States)
Sheridan, K. V.
(Commonwealth Scientific and Industrial Research Organization, Div. of Radiophysics, Epping New South Wales, Australia)
Date Acquired
August 11, 2013
Publication Date
January 1, 1984
Publication Information
Publication: Astronomy and Astrophysics
Volume: 130
Issue: 1 Ja
ISSN: 0004-6361
Subject Category
Solar Physics
Accession Number
84A33208
Funding Number(s)
CONTRACT_GRANT: NSG-7287
CONTRACT_GRANT: NAGW-91
Distribution Limits
Public
Copyright
Other

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