Mass and Magnetic distributions in Self Gravitating Super Alfvenic Turbulence with AMR

Understand

In this work, we present the mass and magnetic distributions found in a recent Adaptive Mesh Refinement (AMR) MHD simulation of supersonic, \sa, self gravitating turbulence.

• Powerlaw tails are found in both volume density and magnetic field probability density functions, with $P(\rho) \propto \rho^{-1.67}$ and $P(B)\propto B^{-2.74}$.
• A power law is also found between magnetic field strength and density, with $B\propto \rho^{0.48}$, throughout the collapsing gas.
• The mass distribution of gravitationally bound cores is shown to be in excellent agreement with recent observation of prestellar cores.