Results 181 to 190 of about 20,265 (219)

Suppression of Solar Radio Noise Storms in Eruptive Flares

International Astronomical Union Colloquium, 1994
AbstractWe report four cases in which eruptive flares were accompanied by sharp decreases in pre-existing radio noise storm intensity observed by the IZMIRAN station at 169 and 204 MHz. The type IV/noise storm emission probably originated in similar eruptive flares occurring earlier in the same active region complexes.
S. W. Kahler, E. W. Cliver, I. M. Chertok   +2 more
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Radio Emission from Solar and Stellar Flares

1996
Flare activity on stars is an important aspect of the general question of stellar activity. The proximity of the Sun allows us to study the flare phenomenon in considerable detail. To what extent does our knowledge of solar flares carry over to those on other stars?
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Energetic electrons in impulsive solar flares: Radio diagnostics

Advances in Space Research, 2005
Abstract Radio emissions during and outside solar flares are tracers of energetic electrons from the bottom of the corona to the interplanetary space. This review focusses on impulsive flares, where joint analyses of radio, hard X-ray and γ-ray observations proved to be powerful probes of the properties of accelerated electrons and of the sites in ...
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Radio Bursts after a Solar Flare (L)

1987
Solar radio bursts have been classified by Australian radioastronomers (P. Wild and others) — see Figure 57. After a solar flare we observe: (a) several bursts of type III; (b) in some cases a burst of type II. These phenomena become understandable when the radiospectrum is recorded: this is done with a cathode-ray tube on a 35 mm film.
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A radio method of detecting solar flares

Journal of Atmospheric and Terrestrial Physics, 1964
Abstract The paper deals with a radio method developed recently at the Research Department of All India Radio for detecting the occurrence of solar flares. Continuous recording at Delhi of the received field strength of skywave from Radio Tashkent (164 kc/s; distance 1630 km from Delhi) has indicated that a sudden increase in the amplitude of the ...
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Radio Bursts after a Solar Flare (L)

1969
After a solar flare we observe: (a) several bursts of type III; (b) in some cases a burst of type II. These phenomena become understandable when the radiospectrum is recorded: this is done with a cathode-ray tube on a 35 mm film.
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Plasma emission mechanism for radio spikes from solar flares

Advances in Space Research, 2001
Abstract Narrowband spiky radio bursts, at decimetric and decametric wavelengths, with high degree of circular polarization are observed in solar flares. We discuss a new plasma emission mechanism for solar radio spikes. It is shown that narrowband radio bursts of right- and left-hand circular polarizations can be produced via nonlinear conversion of
J.R. Abalde, F.A. Borotto, A.C.-L. Chian
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Solar Radio-Frequency Noise Fluctuations and Chromospheric Flares

Nature, 1947
Martyn1 and Shklovsky2 have suggested that plasma oscillations in the corona may provide a source of radio-frequency radiation. It has also been shown that radiation of a few metres wave-length must originate at heights above the chromosphere of the order of a solar radius.
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High-Frequency Radio Signatures of Solar Eruptive Flares

Space Science Reviews, 2003
Several examples of the radio emission of eruptive solar flares with high-frequency slowly drifting structures and type II bursts are presented. Relationships of these radio bursts with eruptive phenomena such as soft X-ray plasmoid ejection and shock formation are shown.
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Radio Imaging Observation of a Solar Flare Cusp

1996
A Gradual Rise and Fall type solar radio event on the east limb was observed by the Nobeyama Radio Heliograph. The event started 23 UT on May 1, 1993 and lasted more than four hours. Radio images synthesized every three minutes showed a cusp shape in the later phase of the event. The peak radio flux was 6 sfu and the GOES X-ray classwas C6.
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