Related by context. Frequent words. (Click for all words.) 64 ionized gas 63 accretion disk 59 ionize 58 exciton 58 Cosmic rays 58 active galactic nuclei 58 ionised 58 X ray emission 57 magnetic reconnection 57 Earth magnetosphere 56 interstellar medium 56 magnetosphere 56 Gamma rays 56 ejecta 56 magnetic fields 56 magnetic flux 56 vortices 56 comet tail 56 antiprotons 56 laser pulse 55 aerosol particles 55 electrochemical reaction 55 silicon atoms 55 plasmons 55 electrically conducting 55 electrons 55 supernova explosion 55 Photons 54 excitons 54 photons 54 supermassive black hole 54 atomic nuclei 54 gravitationally 54 supernova explosions 53 alpha particles 53 airstream 53 toroidal 53 spacetime 53 phonons 53 Brownian motion 53 electron 53 Ultraviolet light 53 magnetic 53 electron beams 53 neutron star 53 starbursts 53 oscillatory 53 supernova remnants 53 atomic nucleus 53 bilayer 53 temperature gradient 53 bosons 53 electromagnet 53 cosmic rays 53 excitations 53 neutron stars 52 solar corona 52 atoms 52 polar vortex 52 subatomic 52 interstellar dust 52 gamma rays 52 water vapor 52 shorter wavelengths 52 crystal lattice 52 radiative 52 visible wavelengths 52 ultrasonic waves 52 superheated steam 52 terahertz radiation 52 galaxy clusters 52 hydrocarbon molecules 52 hydrogen ions 52 torus 52 nanometer sized 51 muon 51 magnetization 51 meteoroids 51 infrared radiation 51 ions 51 particle detectors 51 electron density 51 ferromagnetic 51 planetary nebula 51 updrafts 51 supermassive black holes 51 gravitational waves 51 Gravitational 51 actin filaments 51 photodetector 51 osmium 51 microchannels 51 magnetar 51 electron spins 51 photonic crystal 51 muons 51 laser pulses 51 dipoles 51 subatomic particles 51 supernova remnant 51 quasar