arXiv:1709.06773 [astro-ph.SR]AbstractReferencesReviewsResources Classifications Subjects Themes Keywords nm line core, component analysis deconvolution method, empirical umbral models, spectropolarimetric sunspot umbra observations taken, analyze spectropolarimetric sunspot umbra observations Tags Journal Information Publisher Journal Year Month Volume Number Pages DOI URL Miscellaneous Typesetting Pages Language License Submit Reset