Physics
Scientific paper
Jun 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980pthph..63.1957f&link_type=abstract
Progress of Theoretical Physics, Vol. 63, No. 6, pp. 1957-1970
Physics
8
Scientific paper
Equilibria of rigidly rotating polytropic gas with small compressibilities are computed in order to investigate the relation between the incompressible and compressible equilibria. The equilibrium figure varies from a spheroid-like shape to a concave hamburger as the angular velocity increases. Thus the Maclaurin spheroid does not represent the incompressible limit of the rotaing polytropic gas because of its restriction of the figure. The computed sequence of equilibria clarifies the relation between the Maclaurin spheroid and the Dyson-Wong toroid. Moreover it is the sequence of minimum-energy configuration. These results suggest that our solutions are more physical and probably stabler than any other equilibria of incompressible fluids.
Bisnovatyi-Kogan Gennadi S.
Eriguchi Yoshiharu
Fukushima Takehiro
Sugimoto Daiichiro
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