Skip to main content
SpringerLink
Log in

The effects of partial redistribution on facular K line profiles

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

We present theoretical Ca ii K-line profiles and filtergram contrasts for several recent models of solar faculae. The line profiles vary greatly between models and between complete and partial frequency redistribution non-LTE calculations for any given model. The filtergram contrasts are relatively insensitive to the line formation theory which greatly simplifies the calculation for comparison with observations. All of the models considered exhibit K-line contrasts smaller than the mean value observed by Mehltretter.

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

  • Aller, L. H.: 1963, The Atmospheres of the Sun and Stars, 2nd ed., Ronald Press, New York.

    Google Scholar 

  • Avrett, E. H.: 1976, Center for Astrophysics Preprint No. 592, to appear in The Solar Output and Its Variations.

  • Ayres, T. R.: 1975, Astrophys. J. 201, 799.

    Google Scholar 

  • Ayres, T. R. and Linsky, J. L.: 1976, Astrophys. J. 205, 874.

    Google Scholar 

  • Carbon, D. F. and Gingerich, O.: 1969, in Theory and Observations of Normal Stellar Atmospheres, p. 377.

  • Chapman, G. A.: 1976, Astrophys. J. Suppl. in press.

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

    Google Scholar 

  • Heasley, J. N. and Kneer, F.: 1976, Astrophys. J. 203, 660.

    Google Scholar 

  • Mehltretter, J. P.: 1974, Solar Phys. 38, 43.

    Google Scholar 

  • Mihalas, D.: 1967, Methods in Computational Physics, 7, 1, Academic Press, New York.

    Google Scholar 

  • Shine, R. A. and Linsky, J. L.: 1974, Solar Phys. 37, 145.

    Google Scholar 

  • Shine, R. A., Milkey, R. W., and Mihalas, D.: 1975, Astrophys. J. 201, 222.

    Google Scholar 

  • Stenflo, J. O.: 1975, Solar Phys. 42, 79.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Kitt Peak National Observatory, Tucson, Ariz., USA

    J. N. Heasley

  2. Fraunhofer Institute, Freiburg im Breisgau, F.R.G.

    F. Kneer

  3. Space Sciences Laboratory, The Aerospace Corporation, USA

    G. A. Chapman

Authors
  1. J. N. Heasley
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. F. Kneer
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. A. Chapman
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Operated by the Association of Universities for Research in Astronomy, Inc., under contract with the National Science Foundation.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Heasley, J.N., Kneer, F. & Chapman, G.A. The effects of partial redistribution on facular K line profiles. Sol Phys 52, 309–313 (1977). https://doi.org/10.1007/BF00149647

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00149647

Keywords

Search

Navigation