Studies of Turbulence Dissipation in Taurus Molecular Cloud with Core Velocity Dispersion (CVD)

Abstract

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 $(0.45\pm 0.05)\times 10^{33}\mathrm{erg}{\mathrm{s}}^{-1}$ is similar to those from dimensional analysis and also consistent with the previous energy injection rate based on molecular outflows and bubbles.

Accepted by ApJ

References in corpus (11)

• Theory of Star Formation
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Cited by in corpus (19)

• Gaia EDR3 Reveals the Substructure and Complicated Star Formation History of the Greater Taurus-Auriga Star Forming Complex
• On the formation of density filaments in the turbulent interstellar medium
• Velocity structure functions in multiphase turbulence: interpreting kinematics of H$\alpha$ filaments in cool core clusters
• Measuring Turbulence with Young Stars in the Orion Complex
• Anisotropies in Compressible MHD Turbulence: Probing Magnetic Fields and Measuring Magnetization
• Turbulence in a self-gravitating molecular cloud core
• Turbulence in Milky Way Star-Forming Regions Traced by Young Stars and Gas
• The Velocity Statistics of Turbulent Clouds in the Presence of Gravity, Magnetic fields, Radiation, and Outflow Feedback
• Winds in Star Clusters Drive Kolmogorov Turbulence
• Nonuniversal interstellar density spectra probed by pulsars
• Measuring magnetization with rotation measures and velocity centroids in supersonic MHD turbulence
• Kinematics of the molecular interstellar medium probed by Gaia: steep velocity dispersion-size relation, isotropic turbulence, and location-dependent energy dissipation
• Projected velocity statistics of interstellar turbulence
• Mirror diffusion of cosmic rays in highly compressible turbulence near supernova remnants
• Wide binary stars formed in the turbulent interstellar medium
• Running with the Bulls: The frequency of star-disc encounters in the Taurus star forming region
• Studying the chemical and kinematical structures of dense cores TMC-1C, L1544, and TMC-1 in the Taurus molecular cloud using the CCS and NH3 observations
• Density and tracer statistics in compressible turbulence: phase transition to multifractality
• Network of Star Formation: Fragmentation controlled by scale-dependent turbulent pressure and accretion onto the massive cores revealed in the Cygnus-X GMC complex