The run of superadiabaticity in stellar convection zones. I. The Sun

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dc.creator Demarque, P.
dc.creator Guenther, David B.
dc.creator Kim, Y.-C
dc.date.accessioned 2013-10-25T18:59:06Z
dc.date.available 2013-10-25T18:59:06Z
dc.date.issued 1997-01-10
dc.identifier.issn 0004-637X
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/25297
dc.description Publisher's version/PDF
dc.description.abstract The effect of adjustments to the superadiabatic layer (SAL) in a model of the Sun on the p-mode oscillation frequencies has been studied. Numerical simulations of solar convection by Kim and coworkers have shown that the usual mixing length approximation (MLA) overestimates the convective efficiency in the SAL. To correct for the overestimated convective efficiency in the calculation of the temperature gradient and the mean structure of the SAL, we have adopted a variable mixing length parameter, which decreases as the surface is approached, based on a simple parameterization suggested by the simulations. We find that these changes to the structure of the SAL reduce the discrepancies between observed and calculated oscillation frequencies in the low to intermediate l range. en_CA
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dc.language.iso en en_CA
dc.publisher American Astronomical Society
dc.relation.uri http://dx.doi.org/10.1086/303477
dc.rights Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
dc.subject.lcsh Convection (Astrophysics)
dc.subject.lcsh Solar oscillations
dc.subject.lcsh Sun -- Internal Structure
dc.title The run of superadiabaticity in stellar convection zones. I. The Sun en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Astrophysical Journal 474(2), 790-797. (1997)
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Article is made available in accordance with the publisher’s policy and is subject to copyright law. Please refer to the publisher’s site. Any re-use of this article is to be in accordance with the publisher’s copyright policy. This posting is in no way granting any permission for re-use to the reader/user.
 
Published Version: http://dx.doi.org/10.1086/303477
 
 

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