A Bright Mass Ejection On the Solar Disk on 1980 October 14

A 3B flare and the associated phenomenon of the bright mass ejection on the disk-the spray are discribed. A gap with a width of 2×10⁴ km and a length of 2.5×10⁴km between the flare and the spray was observed. The intensity of the gap was about 1.6 times greater than that of the undisturbed region. The corresponding radio bursts in different wave bands were quite different. For the spray there was a corresponding type Ⅱ meter wave burst and the burst in 3-cm wave band. On the other hand, on corresponding type Ⅱ and type Ⅳ bursts were observed and the corresponding bursts 3-cm wave band was stronger than that in 10-cm wave band. The flare was also different from the spray in hard x-ray emission. The corresponding hard x-ray emission of the spray was quite weak.Some Ha optical phenomena associated with the flare such as the quiescent chromospheric brighteness of the place which was more than 10×10⁵km away from the main body of the flare, the bright loop structure and the dark filament activation, etc., are also discussed.