Magnetic field in molecular cloud cores: Limits on field strengths and linewidths

Details Magnetic field in molecular cloud cores: Limits on field strengths and linewidths Magnetic field in molecular cloud cores: Limits on field strengths and linewidths

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986inpr.conf..169g&link_type=abstract

In NASA. Ames Research Center Summer School on Interstellar Processes: Abstracts of Contributed Papers p 169-170 (SEE N87-15043

Other

Ambipolar Diffusion, Field Strength, Interstellar Magnetic Fields, Molecular Clouds, Spectral Line Width, Gas Density, Magnetic Flux, Magnetohydrodynamic Turbulence, Magnetohydrodynamic Waves

Scientific paper

Preliminary observations by others indicate that the magnetic field strength in dense molecular cloud cores is on the order of 30 μG, much closer to the background field strength than to the flux-freezing prediction for this density. This result implies that some process must exist to decrease the magnetic field strength in these regions to much less than its flux-frozen value, e.g. ambipolar diffusion. At these moderate field strengths, magnetohydrodynamic waves in the cores provide a good explanation of observed supra-thermal molecular linewidths.

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