Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011acasn..52..385x&link_type=abstract
Acta Astronomica Sinica, vol. 52, no. 5, p. 385-391
Astronomy and Astrophysics
Astronomy
Solar System: Formation And Evolution
Scientific paper
Based on the calculation of the conservation of angular momentum, it is proved that the angular momentum of the primordial clouds is insufficient. The rotational inertial centrifugal force of nebula is not large enough to resist the contraction in the inner parts of nebula. Thus, the nebular disk can not be formed in the equator of nebula. Meanwhile, the nebular contractive speed in the radial direction is quicker in the inner than that in the outer. As a result, the center of the nebula forms the sun, and the exterior nebular material forms the nebular disk because it fails to catch up with the inward contraction of the nebular material in the inner parts. The fission and drop-out of the nebular disk lead to the formation of the nebular ring, and the nebular ring forms the planet and its satellite. On the basis of our analysis, the principal characteristics of the solar system are interpreted.
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