Polarity measurements at sunspots with the spectrohelioscope

Details Polarity measurements at sunspots with the spectrohelioscope Polarity measurements at sunspots with the spectrohelioscope

Apr 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975orion..33...48v&link_type=abstract

Orion, vol. 33, Apr. 1975, p. 48-50. In German.

Astronomy and Astrophysics

Astronomy

H Alpha Line, Optical Polarization, Polarimetry, Solar Instruments, Sunspots, Absorption Spectra, Astronomical Photography, Circular Polarization, Optical Equipment, Optical Filters, Phase Shift, Solar Magnetic Field, Solar Rotation, Spectroheliographs, Zeeman Effect

Scientific paper

A new means of determining the polarity of sunspots is outlined. The method employs a quarter-wave phase shifter and a polarized filter in front of the entry slit of the helioscope. The mode of operation of the apparatus is explained and illustrated with examples. Relations to the Zeeman effect are discussed, and the radiation suppression obtained with the equipment is diagrammed.

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