SOLAR FLARE DEBRIS. “The spatial size of a flare depends on individual events; in the smallest event the height of a flaring loop is less than 10(4) km, whereas it reaches 10(5) km in the largest event. Flares are observed in a wide range of electromagnetic waves such as radio, visible light, X- rays, and gamma rays…a flare produces high-energy particles which travel through the interplanetary space, sometimes having a severe impact on the environment of the Earth.” Wonderful review.
http://repository.kulib.kyoto-u.ac.jp/dspace/handle/2433/153022