Giant gaseous protoplanets

Details Giant gaseous protoplanets Giant gaseous protoplanets

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phdt.........8d&link_type=abstract

Ph.D. Thesis Harvard Univ., Cambridge, MA.

Physics

Planetary Evolution, Planetary Structure, Planets, Protostars, Convection Currents, Gases, Solar Wind, Stellar Evolution, Thermodynamic Properties

Scientific paper

The structure and evolution of giant gaseous protoplanets in the mass range 0.3 to 4.5 Jovian masses are investigated. Under the assumptions of the calculations, the following properties are found: (1) the central region of protoplanets of mass less than about one Jovian mass is, at some evolutionary epoch, thermodynamically favorable to the liquification of major interstellar grain constituents; (2) grains in this region can grow and infall to form a planetary core in ten years; (3) all protoplanets studied are convective throughout most of their interior; (4) thermal contraction time depends sensitively on the surface opacity (T less than 200 K).

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