Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...397..674l&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 397, no. 2, p. 674-685.
Astronomy and Astrophysics
Astrophysics
11
Jupiter (Planet), Oscillations, Planetary Rotation, Eigenvalues, Kinetic Energy, P Waves, Phase Transformations, Polytropic Processes
Scientific paper
The properties of the inertial modes of Jupiter are investigated using several different models for that planet. The inertial modes are rotationally induced oscillation modes for which the kinetic energy generally dominates the potential energy of oscillation. The frequency spectrum of the inertial modes mainly depends on the density stratification of Jupiter and sensitively reflects the existence or nonexistence of density discontinuities in the interior. A particularly interesting consequence of the calculations is that observations of the inertial oscillations of Jupiter may enable us to determine whether or not the dense hydrogen in the envelope of this planet undergoes the plasma phase transition (PPT). This may provide an astrophysical test of current theories of the thermodynamic properties of dense hydrogen. It is also found that the discontinuity modes associated with the PPT have observable amplitdues at the surface. These modes may provide an independent test of the interior structure of Jupiter.
Lee Umin
Strohmayer Tod E.
Van Horn Hugh M.
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