NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
An interpretation of the polarization of microwave burstsHigh-spatial-resolution (a few seconds of arc) observations of microwave bursts have demonstrated that only the impulsive phase of the burst is polarized; one observes only one polarity in the burst source if it is weak (Alissandrakis and Kundu) and both polarities if it is intense (Enome et al.). These results are interpreted in terms of an asymmetrical bipolar field structure of the loop in which the energetic electrons responsible for the radiation are contained. The role of unequal field strengths at the feet of the loop on the number of electrons trapped and their pitch angle distribution are discussed in a specific model. Computations of the polarized intensity originating from each foot of the loop seem to be consistent with the observations at present available.
Document ID
19790066814
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kundu, M. R.
(Maryland Univ. College Park, MD, United States)
Vlahos, L.
(Maryland, University College Park, Md., United States)
Date Acquired
August 9, 2013
Publication Date
September 1, 1979
Publication Information
Publication: Astrophysical Journal
Subject Category
Solar Physics
Funding Number(s)
CONTRACT_GRANT: NSF ATM-76-22415
CONTRACT_GRANT: NGR-21-002-199
Distribution Limits
Public
Copyright
Other
No Preview Available