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Four-Stokes-parameter radiofrequency polarimetry of a flare from AD LeonisObservations of the four Stokes parameters of a 430-MHz flare from the UV Ceti-type star AD Leo are presented. The maximum amplitude of the event was 0.52 flux units, and the durations at one-half and one-tenth maximum were 12 and 40 sec, respectively. The degree of circular polarization at maximum intensity was approximately 56% and was later observed to be as high as 92%. Linear polarization was also observed at a level of about 21% at flare maximum which allowed an upper limit of 440 radians/sq m to be placed on the rotation measure.
Document ID
19750030337
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Spangler, S. R.
Rankin, J. M.
Shawhan, S. D.
(Iowa, University Iowa City, Iowa, United States)
Date Acquired
August 8, 2013
Publication Date
November 15, 1974
Publication Information
Publication: Astrophysical Journal
Volume: 194
Subject Category
Astronomy
Accession Number
75A14409
Funding Number(s)
CONTRACT_GRANT: NGL-16-001-002
CONTRACT_GRANT: NSF GA-37827
CONTRACT_GRANT: NSF GP-36549
Distribution Limits
Public
Copyright
Other

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