Please use this identifier to cite or link to this item: https://hdl.handle.net/10216/98386
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dc.creatorChristensen Dalsgaard, J
dc.creatorMonteiro, MJPFG
dc.creatorRempel, M
dc.creatorThompson, MJ
dc.date.accessioned2019-02-02T02:16:07Z-
dc.date.available2019-02-02T02:16:07Z-
dc.date.issued2011
dc.identifier.issn0035-8711
dc.identifier.othersigarra:48630
dc.identifier.urihttps://repositorio-aberto.up.pt/handle/10216/98386-
dc.description.abstractThe stratification near the base of the Sun's convective envelope is governed by processes of convective overshooting and element diffusion, and the region is widely believed to play a key role in the solar dynamo. The stratification in that region gives rise to a characteristic signal in the frequencies of solar p modes, which has been used to determine the depth of the solar convection zone and to investigate the extent of convective overshoot. Previous helioseismic investigations have shown that the Sun's spherically symmetric stratification in this region is smoother than that in a standard solar model without overshooting, and have ruled out simple models incorporating overshooting, which extend the region of adiabatic stratification and have a more-or-less abrupt transition to subadiabatic stratification at the edge of the overshoot region. In this paper we consider physically motivated models which have a smooth transition in stratification bridging the region from the lower convection zone to the radiative interior beneath. We find that such a model is in better agreement with the helioseismic data than a standard solar model.
dc.language.isoeng
dc.rightsrestrictedAccess
dc.subjectAstronomia, Física
dc.subjectAstronomy, Physical sciences
dc.titleA more realistic representation of overshoot at the base of the solar convective envelope as seen by helioseismology
dc.typeArtigo em Revista Científica Internacional
dc.contributor.uportoFaculdade de Ciências
dc.identifier.doi10.1111/j.1365-2966.2011.18460.x
dc.identifier.authenticusP-002-QM4
dc.subject.fosCiências exactas e naturais::Física
dc.subject.fosNatural sciences::Physical sciences
Appears in Collections:FCUP - Artigo em Revista Científica Internacional

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