The problem of field geometry in sunspots

Details The problem of field geometry in sunspots The problem of field geometry in sunspots

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983baicz..34..155b&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 34, no. 3, 1983, p. 155-161.

Astronomy and Astrophysics

Astronomy

2

Solar Spectra, Sunspots, Astronomical Photography, Chromosphere, Electrophotometry, H Alpha Line, Magnetic Field Configurations, Radial Velocity, Solar Magnetic Field

Scientific paper

A comparison is conducted of the results of older spectroscopic magnetic field and velocity field observations in regular sunspots with the results obtained from white-light and monochromatic photographs of sunspots in the form of three schemes of magnetic field lines of force, velocity vectors and fine structure fibril distribution. From these schemes, the horizontal as well as the vertical scales of which are not distorted, the good agreement of the magnetic field distribution in the penumbra with motion of the photospheric and chromospheric penumbral matter, their depths and heights are seen. The difference between the umbral and penumbral field topology and physical conditions, as well as the uncertainty of the position of bright penumbral fibrils in relation to the magnetic field and radial motion distribution is also obtained. The possible conclusions of this comparison are briefly discussed.

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