Coronal Faraday rotation during solar occultation of PSR0525 + 21

Details Coronal Faraday rotation during solar occultation of PSR0525 + 21 Coronal Faraday rotation during solar occultation of PSR0525 + 21

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980natur.283..459b&link_type=abstract

Nature, vol. 283, Jan. 31, 1980, p. 459, 460.

Computer Science

10

Faraday Effect, Magnetic Effects, Pulsars, Solar Corona, Stellar Occultation, Electron Density (Concentration), Linear Polarization, Radio Telescopes, Solar Magnetic Field, Solar Rotation, Stellar Radiation

Scientific paper

The apparent position of the pulsar PSR0525 + 21 is within 1.3 deg of the south pole on or about June 13 of each year. It is noted that during these times of superior conjunction, the linearly polarized component of the pulsar radiation is subjected to an additional Faraday rotation due to the high electron density and strong magnetic field of the solar corona. Attention is given to measurements made of this Faraday rotation during 1978 and 1979. The measurements compare pulsar polarization profiles at a wavelength of 17.4 cm (f 1720 MHz) for times before, during, and after occultation by the sun. It is reported that a significant residual rotation measure, which exceeded the interstellar value, was observed both years at times close to that of minimum solar approach.

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