Coronal Mass Ejections: Models and Their Observational Basis

Coronal mass ejections (CMEs) are the largest-scale eruptive phenomenon in the solar system, expanding from active region-sized nonpotential magnetic structure to a much larger size. The bulk of plasma with a mass of 10 11 -10 13 kg is hauled up all the way out to the interplanetary space with a typical velocity of several hundred or even more than 1000 km s -1 , with a chance to impact our Earth, resulting in hazardous space weather conditions. They involve many other much smaller-sized solar eruptive phenomena, such as X-ray sigmoids, filament/prominence eruptions, solar flares, plasma heating and radiation, particle acceleration, EIT waves, EUV dimmings, Moreton waves, solar radio bursts, and so on. It is…

• NA
  National Aeronautics and Space Administration
• NN
  National Natural Science Foundation of China

  Awards: 10933003, 10878002, 2011-1, 11025314