A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.
A red giant of spectral type S whose spectrum is dominated by molecular bands arising from zirconium oxide (ZrO). S stars also have strong cyanogen bands and contain spectral lines of lithium and tech
netium. Almost all S stars are long-period variables.
The characteristic of a system if sufficiently small disturbances have only small effects, either decreasing in amplitude or oscillating periodically; it is asymptotically stable if the effect of smal
l disturbances vanishes for long time periods.
Fundamentally equivalent content (as permitted by the provider’s content variance policy) that is expected to be available for a longer period of time.
An effect due to heat sources within a local exhaust enclosure (stack) producing convective air currents with vertical velocities proportional to the rate of heat transferred to the surrounding air an
d to the height of rise of the heated air.