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Recent evidence for convection in sunspot penumbrae
Stockholm University, Faculty of Science, Department of Astronomy.
2008 (English)In: Physica Scripta, Vol. 133, 014015- p.Article in journal (Other academic) Published
Abstract [en]

Whereas penumbral models during the last 15 years have appeared successful in explaining Evershed flows and magnetic field inclination variations in terms of flux tubes, the lack of connection between these models and a convective process to explain the penumbral radiative heat flux has been disturbing. We report on recent observational and theoretical evidence that challenge these flux tube interpretations and instead suggest overturning convection as the origin of the penumbral filamentary structure.

Place, publisher, year, edition, pages
2008. Vol. 133, 014015- p.
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:su:diva-18332DOI: doi:10.1088/0031-8949/2008/T133/014015OAI: oai:DiVA.org:su-18332DiVA: diva2:184855
Available from: 2009-01-25 Created: 2009-01-25 Last updated: 2011-01-10Bibliographically approved

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