Evidence for non-radial fields in the sun's photosphere and a possible explanation of the polar magnetic signal

Details Evidence for non-radial fields in the sun's photosphere and a possible explanation of the polar magnetic signal Evidence for non-radial fields in the sun's photosphere and a possible explanation of the polar magnetic signal

Sep 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975soph...44....3p&link_type=abstract

Solar Physics, vol. 44, Sept. 1975, p. 3-12.

Physics

8

Magnetic Effects, Photosphere, Solar Atmosphere, Solar Magnetic Field, Faculae, Magnetometers, Polar Regions, Radiant Flux Density, Recording Instruments, Sunspots

Scientific paper

The appearance of H-alpha fibrils suggests the presence of magnetic fields inclined at noticeably nonradial angles in the sun's chromosphere. Evidence is presented to suggest that these angles continue into the photosphere. The presence even of small nonradial inclinations can significantly affect the appearance of regions observed by a longitudinal magnetograph. In particular, a simple bipolar loop can appear unbalanced when viewed near the limb. It is suggested that the observed polar signal may be nothing more than a geometric effect arising when a balanced but systematically aligned array of bipolar pairs is viewed at an angle.

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