A nucleosynthesis process by which chemical elements heavier than copper are formed through a slow flux of neutrons absorbed by atomic nuclei (neutron-capture element). The capture of neutrons occurs
on time scales that are long enough to enable unstable nuclei to decay via the emission of a beta particle before absorbing another neutron. Prominent s-process elements include barium, zirconium, and yttrium.
A nucleosynthesis process by which chemical elements heavier than copper are formed through a slow flux of neutrons absorbed by atomic nuclei (neutron-capture element). The capture of neutrons occurs
on time scales that are long enough to enable unstable nuclei to decay via the emission of a beta particle before absorbing another neutron. Prominent s-process elements include barium, zirconium, and yttrium.
The diurnal variation of the geomagnetic field. The Sq variation is explained in terms of solar tidal motions of the ionosphere and thermally driven ionospheric winds.
A line of active thunderstorms, either continuous or with breaks, including contiguous precipitation areas resulting from the existence of the thunderstorms.