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A new empirical model of a sunspot umbra

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Abstract

A model for the T, τ-relation in the umbra of a sunspot is derived from the observed infrared continuous limb darkening of the spots' umbrae.

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Authors and Affiliations

  1. Bartol Research Foundation of The Franklin Institute, 19081, Swarthmore, Pennsylvania

    Hong Sik Yun

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  1. Hong Sik Yun
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Additional information

This work was supported by NASA Grant NGR-39-005-066.

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Yun, H.S. A new empirical model of a sunspot umbra. Sol Phys 16, 379–383 (1971). https://doi.org/10.1007/BF00162479

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  • DOI: https://doi.org/10.1007/BF00162479

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