Four-Stokes-parameter radiofrequency polarimetry of a flare from AD Leonis

Details Four-Stokes-parameter radiofrequency polarimetry of a flare from AD Leonis Four-Stokes-parameter radiofrequency polarimetry of a flare from AD Leonis

Nov 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...194l..43s&link_type=abstract

Astrophysical Journal, vol. 194, Nov. 15, 1974, pt. 2, p. L43-L46.

Astronomy and Astrophysics

Astronomy

12

Circular Polarization, Flares, Polarimeters, Radio Astronomy, Stellar Radiation, Astronomical Models, Computer Techniques, Solar Flares, Stellar Rotation, Stokes Law Of Radiation

Scientific paper

Observations 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.

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