2  Characteristics of electromagnetic fields and radiation

2.1

2.2 Natural electromagnetism

2.2.1 Space and the sun

Coronal mass ejection (CME): Ejection of plasma mass from the sun. One often talks about flares, and flares of different strength, e.g. X1 to X100. The Carrington event (1859) is said to have been between X45 or X80 flare (ADD REFERENCE). One also talk about the KP-index – the geomagnetic storm index, with values like typically Kp5-Kp9.

Cosmic microwave background radiation (CMB(R)): (LOOK UP AND IMPROVE TERMINOLOGY AND ABREVIATION, NOT SURE IF THIS IS USED OR COMMONLY USED)