Recent evidence for convection in sunspot penumbrae
2008 (English)In: Physica Scripta, Vol. 133, 014015- p.Article in journal (Other academic) Published
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.
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-18332DOI: doi:10.1088/0031-8949/2008/T133/014015OAI: oai:DiVA.org:su-18332DiVA: diva2:184855