Studies of Turbulence Dissipation in Taurus Molecular Cloud with Core
  Velocity Dispersion (CVD)
  Turbulence dissipation is an important process affecting the energy balance
in molecular clouds, the birth place of stars. Previously, the rate of
turbulence dissipation is often estimated with semi-analytic formulae from
simulation. Recently we developed a data analysis technique called
core-velocity-dispersion (CVD), which, for the first time, provides direct
measurements of the turbulence dissipation rate in Taurus, a star forming
cloud. The thus measured dissipation rate of $(0.45\pm 0.05)\times 10^{33} {\rm
erg\ s^{-1}}$ is similar to those from dimensional analysis and also consistent
with the previous energy injection rate based on molecular outflows and
bubbles.
