Skip to main content
SpringerLink
Log in

Hα line profile observations of a limb flare with high temporal resolution

  • Published:
Solar Physics Aims and scope Submit manuscript

Abstract

We observed in Hσa the impulsive phase of a 1N/M2.0 limb flare on September 8, 1988 with high temporal resolution. With an imaging spectrograph line profiles have been acquired every 2.3 s. The temporal evolution in the blue and red wing has been correlated with hard X-ray data from HXRBS. It is shown that a prominent spike in the blue wing of Hα was delayed with respect to the corresponding hard X-ray burst by 7–8 s. With the exception of the spike in the blue wing of Hα, the temporal development of the line profile is compatible with the predictions for nonthermal electron heating during the impulsive phase.

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

  • Canfield, R. C. and Gayley, K. G.: 1987, Astrophys. J. 322, 999.

    Google Scholar 

  • Dennis, B. R.: 1989, private communication.

  • Fisher, G. H., Canfield, R. C., and McClymont, A. N.: 1985a, Astrophys. J. 289, 425.

    Google Scholar 

  • Fisher, G. H., Canfield, R. C., and McClymont, A. N.: 1985b, Astrophys. J. 289, 434.

    Google Scholar 

  • Gunkler, T. A., Canfield, R. C., Acton, L. W., and Kiplinger, A. L.: 1984, Astrophys. J. 285, 835.

    Google Scholar 

  • Ichimoto, K. and Kurokawa, H.: 1984, Solar Phys. 93, 105.

    Google Scholar 

  • Kämpfer, N. and Magun, A.: 1983, Astrophys. J. 274, 910.

    Google Scholar 

  • Kämpfer, N. and Schöchlin, W.: 1982, Astrophys. J. 78, 215.

    Google Scholar 

  • Krüger, A.: 1979, Introduction to Solar Radio Astronomy and Radio Physics, D. Reidel Publ. Co., Dordrecht, Holland.

    Google Scholar 

  • Kurokawa, H.: 1983, Solar Phys. 86, 195.

    Google Scholar 

  • Kurokawa, H.: 1986, in D. F. Neidig (ed.), The Lower Atmosphere of Solar Flares, NSO/SMM Flare Symposium, p. 51.

  • Kurokawa, H., Takakura, T., and Okhi, K.: 1988, Publ. Astron. Soc. Japan 40, 357.

    Google Scholar 

  • Marti, H.: 1987, Diploma thesis, Institute of Applied Physics, Bern.

    Google Scholar 

  • Wülser, J.-P.: 1987, Solar Phys. 114, 115.

    Google Scholar 

  • Wülser, J.-P. and Kämpfer, N.: 1986, in B. R. Dennis, L. E. Orwig, and A. L. Kiplinger (eds.), Rapid Fluctuations in Solar Flares, NASA CP-2449, p. 301.

  • Wülser, J.-P. and Marti, H.: 1989, Astrophys. J. 341, 1088.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Applied Physics, University of Bern, CH-3012, Bern, Switzerland

    M. Graeter

Authors
  1. M. Graeter
    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

Graeter, M. Hα line profile observations of a limb flare with high temporal resolution. Sol Phys 130, 337–346 (1990). https://doi.org/10.1007/BF00156797

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00156797

Keywords

Search

Navigation