Observations of a solar latitude-dependent limb brightness variation

Details Observations of a solar latitude-dependent limb brightness variation Observations of a solar latitude-dependent limb brightness variation

Mar 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...290..758k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 290, March 15, 1985, p. 758-764. NSF-USAF-supported research.

Astronomy and Astrophysics

Astrophysics

33

Faculae, Limb Darkening, Solar Limb, Brightness Temperature, Photosphere

Scientific paper

A small latitude-dependent photospheric excess brightness variation has been observed from 131 days of data obtained with the Princeton Solar Distortion Telescope. Using an analytic model to separate the influence of faculae from the brightness signal, a temperature difference of 0.6 + or - 0.1 K between the poles and the regions at + or - 53 solar latitude was obtained for the summer of 1983, a temperature difference of 0.6 + or - 0.1 K between the poles and the regions at + or - 53 deg solar latitude was obtained for the summer of 1983, with the polar regions being hotter.

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