Abstract
AT the Ondrejov Observatory, simultaneous observations of a spectrohelioscope by L. Krivsky and radiometers at 231 and 260 Mc/s by A. Tlamicha were made, showing a clear time coincidence between a type of group of bursts, even when the duration is short, and active dark filaments without flare in more than 15 cases during 1960–62. This type of group of bursts referred to as type NA (and NB) (ref. 1) is a group of short duration bursts without remarkable enhancement of base-level.
Similar content being viewed by others
Article PDF
References
Tlamicha, A., Krivsky, L., and Olmr, J., Inform. Bull. Solar Radio Observatories, No. 14 (June 1963).
Swarup, G., Stone, P. H., and Maxwell, A., Astrophys, J., 131, 725 (1960).
Warwick, C. S., Astrophys. J., 120, 237 (1954).
Wild, J. P., and Zirin, H., Austral. J. Phys., 9, 315 (1956).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
TLAMICHA, A., TAKAKURA, T. Active Dark Filaments and Type III Bursts. Nature 200, 999 (1963). https://doi.org/10.1038/200999a0
Issue Date:
DOI: https://doi.org/10.1038/200999a0
This article is cited by
-
Frequency gap between fast drift and type III associated bursts
Radiophysics and Quantum Electronics (1998)
-
Unstable chromospheric dark features and type-III bursts association
Solar Physics (1986)
-
The association of nonthermal electrons with non-flaring coronal transients
Solar Physics (1978)
-
Non-thermal processes during the ?build-up? phase of solar flares and in absence of flares
Solar Physics (1976)
-
Acceleration of electrons in absence of detectable optical flares deduced from type III radio bursts, H? activity and soft X-ray emission
Solar Physics (1974)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.