Physics & Astronomy
magnetic stars
100%
neutron stars
66%
atmospheres
48%
ionization
48%
photoionization
33%
pulsars
23%
satellite observation
16%
concentrating
13%
cross sections
13%
thermal emission
13%
Lorentz force
13%
atoms
11%
magnetic fields
11%
hydrogen atoms
10%
surface layers
9%
angular momentum
9%
orbitals
8%
protons
7%
anisotropy
7%
thresholds
7%
temperature
6%
symmetry
6%
photons
6%
x rays
5%
electrons
4%
energy
3%
Earth & Environmental Sciences
ionization
67%
atmosphere
40%
magnetic field
40%
cross section
36%
angular momentum
28%
observation satellite
22%
symmetry
21%
radio
20%
surface layer
20%
anisotropy
19%
code
17%
hydrogen
17%
temperature
17%
effect
16%
electron
16%
energy
11%