Physics and chemistry in the primitive solar nebula

Details Physics and chemistry in the primitive solar nebula Physics and chemistry in the primitive solar nebula

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pcps.conf.....m&link_type=abstract

Presented at Les Houches Summer School, Aug. 1983

Physics

1

Accretion Disks, Nebulae, Stellar Evolution, Sun, Cosmic Dust, Gravitational Collapse, Interstellar Matter, Solar Corona, Turbulence Effects

Scientific paper

The physics and chemistry of the primitive solar nebula are explained as a collapsing protosolar cloud which evolves into a viscous accretion disk, surrounding and feeding the central protostar. Physical processes are discussed and the transport theory of small dust particles and trace vapors in a turbulent disk is developed. The cosmochemical consequences arising from this picture are compared with measurements in our solar system. It is concluded that the viscous accretion disk, which must be regarded as the protoplanetary cloud, provides a model which gives very detailed quantifiable cosmochemical predictions, and that these predictions are in good agreement with available observations from meteorite studies. The model implies that planet formation and star formation are concurrent.

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