Skip to main content
SpringerLink
Log in

Umbral oscillations in a detailed model umbra

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

Our theory of umbral oscillations as resonant modes of magneto-atmospheric waves (Scheuer and Thomas, 1981) is extended and confirmed by calculating the resonant modes in a much more detailed model of the umbral atmosphere. The depths of forcing required to produce observed oscillation periods (roughly 140 to 185 s) are in good agreement with the depths of overstable convection found in other studies (Moore, 1973; Mullan and Yun, 1973).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Ferraro, V. C. A. and Plumpton, C.: 1958, Astrophys. J. 127, 459.

    Google Scholar 

  • Gingerich, O., Noyes, R. W., Kalkofen, W., and Cuny, Y.: 1971, Solar Phys. 18, 347.

    Google Scholar 

  • Hénoux, J. C.: 1969, Astron. Astrophys. 2, 288.

    Google Scholar 

  • Kneer, F.: 1972, Astron. Astrophys. 18, 33.

    Google Scholar 

  • Kollatschny, W., Stellmacher, G., Wiehr, E., and Falipou, M. A.: 1980, Astron. Astrophys. 86, 245.

    Google Scholar 

  • Makita, M.: 1963, Publ. Astron. Soc. Japan 15, 145.

    Google Scholar 

  • Moore, R. L.: 1973, Solar Phys. 30, 403.

    Google Scholar 

  • Mullan, D. J. and Yun, H. S.: 1973, Solar Phys. 30, 83.

    Google Scholar 

  • Scheuer, M. A. and Thomas, J. H.: 1981, Solar Phys. 71, 21.

    Google Scholar 

  • Stellmacher, G. and Wiehr, E.: 1970, Astron. Astrophys. 7, 432.

    Google Scholar 

  • Stellmacher, G. and Wiehr, E.: 1975, Astron. Astrophys. 45, 69.

    Google Scholar 

  • Teplitskaja, R. B., Grigoryeva, S. A., and Sokchilov, V. G.: 1978, Solar Phys. 56, 293.

    Google Scholar 

  • Thomas, J. H.: 1978, Astrophys. J. 225, 275.

    Google Scholar 

  • Uchida, Y. and Sakurai, T.: 1975, Publ. Astron. Soc. Japan 27, 259.

    Google Scholar 

Download references

Author information

Author notes

  1. Mark A. Scheuer

    Present address: Xerox Corporation, 800 Phillips Rd., 14580, Webster, NY, U.S.A.

Authors and Affiliations

  1. Department of Mechanical Engineering and C. E. Kenneth Mees Observatory, University of Rochester, 4627, Rochester, NY, U.S.A.

    John H. Thomas & Mark A. Scheuer

Authors
  1. John H. Thomas
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Mark A. Scheuer
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Thomas, J.H., Scheuer, M.A. Umbral oscillations in a detailed model umbra. Sol Phys 79, 19–29 (1982). https://doi.org/10.1007/BF00146970

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00146970

Keywords

Search

Navigation