The magnetic field in a protostellar cloud

Details The magnetic field in a protostellar cloud The magnetic field in a protostellar cloud

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.164..213e&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 164, no. 2, Feb. 1990, p. 213-229.

Astronomy and Astrophysics

Astrophysics

2

Interstellar Magnetic Fields, Interstellar Matter, Protostars, Stellar Evolution, Ambipolar Diffusion, Ohmic Dissipation

Scientific paper

The present investigation of both the isothermal and nonisothermal regions' B-rho relation gives attention to the magnetic dissipation, which can occur by way of either ambipolar diffusion or Ohmic dissipation. It is found that magnetic flux begins to dissipate via ambipolar diffusion at a neutral density above 3 x 10 to the 9th/cu cm; this process remains in effect until densities above 10 to the 11th are reached, where Ohmic dissipation dominates. The rates of heating by both Ohmic dissipation and ambipolar diffusion are smaller than the rate of compressional heating in the case of magnetic dissipation.

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