Electrodynamic forces in stellar formation

Details Electrodynamic forces in stellar formation Electrodynamic forces in stellar formation

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992itps...20..877o&link_type=abstract

IEEE Transactions on Plasma Science (ISSN 0093-3813), vol. 20, no. 6, p. 877-881.

Physics

Angular Momentum, Electrodynamics, Lorentz Force, Protostars, Star Formation, Stellar Magnetic Fields, Ambipolar Diffusion, Dipole Moments, Magnetic Flux

Scientific paper

The role of electrodynamic forces in stellar formation is discussed, with emphasis on magnetic flux and angular momentum problems. It is shown that ambipolar diffusion is able to solve the magnetic flux problem. It is demonstrated that Alfven waves create a Lorentz force on the plasma. Rotation of the contracting protostar creates torsional Alfven waves. The created Lorentz force can brake the protostar sufficiently to solve the angular momentum problem. It is suggested that a Lorentz force brings in the necessary magnetic field to initiate the stellar formation process. It is argued that it is a Lorentz force that stops the accretion of matter in the stellar formation process. The magnetic fields in the stellar formation region are suggested to have their origin in jets emitted by galactic nuclei.

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