| Issue |
A&A
Volume 396, Number 3, December IV 2002
|
|
|---|---|---|
| Page(s) | 1015 - 1018 | |
| Section | Planets and planetary systems | |
| DOI | https://doi.org/10.1051/0004-6361:20021493 | |
| Published online | 05 December 2002 | |
Observation of harmonically related solar radio zebra patterns in the 1–4 GHz frequency range
1
Instituto Nacional de Pesquisas Espaciais, INPE, CP 515, 12201-970 São José dos Campos, SP, Brazil
2
Astronomical Institute of the Academy of Sciences of the Czech Republic, 25165 Ondřejov, Czech Republic
Corresponding author: H. S. Sawant, guga@das.inpe.br
Received:
12
March
2002
Accepted:
24
September
2002
A unique case of two zebra patterns related harmonically with ratio of ~1:2 was observed by distant radio telescopes at São José dos Campos and Ondřejov Observatories. Accompanied zebras show that the ratio of frequencies of the neighboring zebra lines is in the range of 1.009–1.037. There is a tendency of a decrease of this ratio with decreasing frequency within the specific zebra pattern. Both facts speak in favour of plasma emission models for the zebra pattern fine structure in radio burst continua.
Key words: plasmas / Sun: flares / Sun: radio radiation
© ESO, 2002
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