Contraction of magnetic interstellar clouds

Details Contraction of magnetic interstellar clouds Contraction of magnetic interstellar clouds

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984fcph....9..139n&link_type=abstract

Fundamentals of Cosmic Physics (ISSN 0094-5846), vol. 9, July 1984, p. 139-231.

Physics

136

Astronomical Models, Interstellar Magnetic Fields, Magnetic Clouds, Magnetohydrodynamic Stability, Molecular Clouds, Stellar Evolution, Interstellar Matter, Magnetic Field Configurations, Magnetic Flux, Plasma Density, Plasma Drift, Recombination Reactions, Stellar Magnetic Fields

Scientific paper

The star-formation process in a magnetic interstellar cloud is examined theoretically in a review of current research. Topics discussed include criteria for the dynamical contraction of clouds, cloud fragmentation, the magnetic flux of a cloud, plasma and magnetic-field drift, charged-particle densities, the time scale of magnetic-flux loss, and quasi-static and dynamic models of cloud contraction. The gas is found to decouple from the magnetic field as the density exceeds about 5.2 x 10 to the 11th/cu cm, and the magnetic field brought into the newborn star is estimated as 0.8 gauss. Graphs, diagrams, and tables are provided.

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