Naslov
Correlated radio bursts observed at metric and millimetric wavelengths

Autori
Zlobec, Paolo ; Urpo, Seppo ; Vršnak, Bojan ; Brajša, Roman ; Ruždjak, Vladimir

Izvornik
Hvar Observatory Bulletin (0351-2657) 24 (2000), 1; 41-56

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, kongresno priopcenje, znanstveni

Ključne riječi
solar radio bursts - metric wavelengths - millimetric wavelengths - correlations

Sažetak
Characteristics of the bursts that occur almost contemporaneously at metric and millimetric wavelengths are presented. It is found that such events are rather rare. The correlated impulsive bursts observed at 237 MHz and at 37 GHz start in average almost simultaneously (time difference 0.3+(-)2.8 s). The first peaks at 37 GHz are delayed few seconds (3.1+(-)3.0 s) in respect to the 237 MHz peaks, whereas for the bursts maxima the delay is about 1s in average (1.0+(-)2.7 s). A weak correlation between peak fluxes at 37 GHz and 237 MHz is found. Spectral characteristics of these events indicate electron beams of extremely high energies. The association of the gradual bursts observed at 37 GHz and the phenomena at 237 MHz is not so clear, however in some cases a relationship was established.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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