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Challenges to Theories of the Structure of Moderate-Mass Stars pp 43–50Cite as

Influence of the upper layers of the sun on the p-mode frequencies

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Part of the book series: Lecture Notes in Physics ((LNP,volume 388))

Abstract

We consider the effect of uncertainties in solar models on the p-mode frequencies of moderate degree (40 ≤ l ≤ 100). This is done by means of an asymptotic relation that provides a simple way of estimating differences in p-mode frequencies of two solar models. Also, we have investigated the possibility for separating different contributions to the difference between the models, on the basis of the frequencies of the modes. Analysis of observed frequencies suggests that the solar envelope helium abundance Y s is close to 0.25; however, this result may be sensitive to other uncertainties in the solar models.

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Author information

Authors and Affiliations

  1. Institute for Theoretical Physics, University of California, Santa Barbara

    J. Christensen-Dalsgaard

  2. Astronomisk Institut, Aarhus Universitet, DK 8000, Aarhus C, Denmark

    J. Christensen-Dalsgaard

  3. Instituto de Astrofísica de Canarias, La Laguna, E-38200, Tenerife, Spain

    F. Pérez Hernández

Authors
  1. J. Christensen-Dalsgaard
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  2. F. Pérez Hernández
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Editor information

Douglas Gough Juri Toomre

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© 1991 Springer-Verlag

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Christensen-Dalsgaard, J., Pérez Hernández, F. (1991). Influence of the upper layers of the sun on the p-mode frequencies. In: Gough, D., Toomre, J. (eds) Challenges to Theories of the Structure of Moderate-Mass Stars. Lecture Notes in Physics, vol 388. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-54420-8_49

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  • DOI: https://doi.org/10.1007/3-540-54420-8_49

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-54420-3

  • Online ISBN: 978-3-540-38355-0

  • eBook Packages: Springer Book Archive

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