Related by context. Frequent words. (Click for all words.) 61 radial velocity 59 amplitudes 59 Cepheids 59 Brownian motion 58 photometry 58 optical wavelengths 58 oscillations 58 interferometric 57 anisotropy 57 oscillatory 57 wavefront 57 doppler 56 interferometry 56 polar vortex 56 ionospheric 56 spacetime 56 interferometers 56 isotropic 56 electron spins 55 gravitational lensing 55 atmospheric turbulence 55 magnetization 55 windspeed 55 X ray emission 55 magnetic flux 55 Type Ia supernovae 55 magnetic reconnection 55 refraction 54 auroral 54 excitations 54 terahertz radiation 54 interferometer 54 shorter wavelengths 54 Hawking radiation 53 parallax 53 occultation 53 pulsations 53 absorbance 53 ITCZ 53 gravitational wave 53 radiometer 53 perturbations 53 Doppler 53 electron density 52 dynamical 52 WASP #b 52 oscillation 52 vortices 52 diffraction 52 precession 52 surface roughness 52 resonant frequency 52 perturbation 52 geomagnetic 52 convective 52 photometer 52 dipole 52 irradiance 52 meteoroid 51 microlensing 51 redshifts 51 dispersive 51 visible wavelengths 51 ionisation 51 spectra 51 nanomechanical 51 keV 51 angular momentum 51 cosmic ray 51 intensities 51 near infrared NIR 51 amplitude 51 magnetars 51 cirrus 51 radiative forcing 51 velocities 51 gravitational waves 51 galaxy formation 51 magnetic fields 51 muon 51 gravitational attraction 51 Jupiter moons 51 attosecond 51 solar corona 50 planetary nebulae 50 active galactic nuclei 50 frequency modulation 50 vibrational 50 dipoles 50 z = 50 Gaussian 50 accretion disk 50 ecliptic 50 photoelectric effect 50 sine wave 50 Earth magnetosphere 50 phonons 50 redshift 50 infrared radiation 50 solar irradiance 50 moonlets