The source model of low-energy electrons responsible for type I and type III radio noise storms

The source model of the electrons (1–10 keV) responsible for the observed impulsive low-energy electron flux events in the solar wind plasma and for type I and III noise storms is considered. The appearance of such a source is associated with the tearing mode instability of a neutral current sheet located above the bipolar region of the solar disk and immersed to a flux of solar wind plasma. Such an instability develops most favorably in the low corona layers at the heights h ≈ (0.5–1) r⊙, where the solar wind flux is rather small. In the upper corona layers the current sheet is stabilized by a strong flux of solar wind plasma. Disruptions of the current sheet produce accelerated particles with energy and flux enough for the generation of type I radio bursts at the base of the bipolar structure and of type III bursts in the solar wind plasma.