Astrophysics (Index)About

relaxation time

(time associated with exponential falloff)

The term relaxation time is used to characterize the rate at which something returns to normal (relaxation), used when this return is characterized by some quantity falling off exponentially. Relaxation time is the time for that quantity to fall by a factor of e. The return-to-normal's half life carries the same information but is scaled to the time in which the quantity halves.

Further reading:

Referenced by pages:
e-folding time
Stokes number (Stk)