Skip to main content
SpringerLink
Log in

Progressive brightenings observed in the wing of Hα line

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

In an active region, several points were observed to brighten progressively on the monochromatic image of Hα - 1.2 Å formed by the Domeless Solar Telescope installed recently at Hida Observatory. The phenomena were interpreted as small flares or subflares. The propagation velocity was measured in two cases and discussed in terms of the multiple loop activation observed in EUV radiation.

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

  • Švestka, Z.: 1976, Solar Flares, D. Reidel Publ. Co., Dordrecht, Holland.

    Google Scholar 

  • Vorpahl, J. A.: 1976, Astrophys. J. 205, 868.

    Google Scholar 

  • Widing, K. G. and Dere, K. P.: 1977, Solar Phys. 55, 431.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Kwasan and Hida Observatories, University of Kyoto, 606, Kyoto, Japan

    I. Kawaguchi, H. Kurokawa, Y. Funakoshi & Y. Nakai

Authors
  1. I. Kawaguchi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. H. Kurokawa
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Y. Funakoshi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Y. Nakai
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Contributions from the Kwasan and Hida Observatories, University of Kyoto, No. 249.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kawaguchi, I., Kurokawa, H., Funakoshi, Y. et al. Progressive brightenings observed in the wing of Hα line. Sol Phys 78, 101–105 (1982). https://doi.org/10.1007/BF00151146

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00151146

Keywords

Search

Navigation