Origin and ability of planetary systems

Details Origin and ability of planetary systems Origin and ability of planetary systems

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987brig.iafcs....r&link_type=abstract

IAF, International Astronautical Congress, 38th, Brighton, England, Oct. 10-17, 1987. 5 p.

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Angular Momentum, Binary Stars, Origins, Planetary Systems, Solar Radiation, Brown Dwarf Stars, Computational Astrophysics, Interstellar Magnetic Fields

Scientific paper

The formation of a planetary system from the collapse of a cloud is discussed. The cloud's angular momentum J must be small enough to form a starlike core with a mass of at least 0.01 solar, but to form planets the cloud's J must exceed the minimum necessary to form a single star. The disk from which planets form originates from the equatorial layer of the core of the cloud, and spreads out due to magnetic and turbulent torques. This model can explain the lack of brown dwarf companions to solar type stars.

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