THE ASSOCIATIVE PROCESSES OF SOLAR MICROWAVE BURSTS WITH ENERGETIC PROTONS

In the paper,it is shown that neither type Ⅱ nor meter-wave type Ⅳ but intense microwave bursts are nearly always associated with energetic protons by data analysis of recent observations of solar radio bursts and associated γ-ray emissions/proton events.The result is contrary to the previous long-held views.The microwave bursts associated with energetic protons can be divided into two classes:impulsive and type Ⅳμ bursts.The former is associated with much more happed or interacting protons than the escaping ones,but the latter often associated with more escaping protons. Furthermore,the efficient acceleration processes for the different cases in solar microwave bursts and the reasons why the intense microwave bursts are nearly always associated with energetic protons are also discussed.