Temperature distribution in sunspot umbras

Details Temperature distribution in sunspot umbras Temperature distribution in sunspot umbras

Jun 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975azh....52..568r&link_type=abstract

Astronomicheskii Zhurnal, vol. 52, May-June 1975, p. 568-571. In Russian.

Astronomy and Astrophysics

Astronomy

Continuous Spectra, Solar Temperature, Sunspots, Temperature Distribution, Umbras, Electrophotometry, Luminous Intensity, Monochromatic Radiation, Solar Spectra, Spectroheliographs

Scientific paper

The temperature distribution in umbras of 'small' (umbral area about 20 millionths of a solar hemisphere) and 'average' (umbral area about 50 millionths of a solar hemisphere) sunspots is calculated using observations of monochromatic sunspot profiles obtained with a high-speed photoelectric spectrophotometer. The temperature in sunspots with these areas is found to be substantially lower than previously reported.

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