[Hucke 1992 a]
Interplanetary type III radiobursts and relativistic electrons
S. Hucke, M.-B. Kallenrode and G. Wibberenz.
Interplanetary type III radiobursts and relativistic electrons.
Solar Physics 142, 143-155. 1992
Contents
51 kilometric type III bursts are used and compared with the
relativistic electrons observed directly in interplanetary space to gain
more insight into the relationship between low energetic and relativistic
electrons.
It is found that 25 bursts are accompanied by a relativistic electron event
in interplanetary space.
The probability for detection of an electron event decreases from more than
74 percent inside a cone of ± 20° to 56 percent inside a
cone of ± 60° around the flare site.
There is only a small correlation between the brightness temperature of the
radio burst and the size of the electron event.
Despite the broad scatter of these values, there is a clear indication that for
a given size of the relativistic electron event the intensity of the
type III burst is about a factor of five higher if it is accompanied by a
type II burst.
It is concluded that at least part of the relativistic electrons are frequently
accelerated together with nonrelativistic electrons and that the coronal
shock associated with the metric type II burst has a weaker effect on
relativistic than on nonrelativistic electrons.
Back to Publications.
Last update: 30-JUN-1997
Mail to
green@ifkki.kernphysik.uni-kiel.de
Editor:
vanhoefer@ifkki.kernphysik.uni-kiel.de