A&A 375, L47-L50 (2001)
DOI: 10.1051/0004-6361:20010989
On Jupiter's inertial mode oscillations
B. Dintrans1, 2 and R. Ouyed11 Nordic Institute for Theoretical Physics, Blegdamsvej 17, 2100 Copenhagen, Denmark
2 Laboratoire d'Astrophysique de Toulouse, Observatoire Midi-Pyrénées, 14 avenue É. Belin, 31400 Toulouse, France
(Received 21 June 2001 /Accepted 8 July 2001)
Abstract
Properties of inertial modes of Jupiter are investigated for an n=1
polytropic description of the planet interior. We use the anelastic
approximation to overcome the usual handicap of a severe spherical
harmonics truncation. A powerful iterative solver then allows us to
compute the frequencies of the most promising low-order modes using as
many spherical harmonics as necessary. The induced
errors of
our model are now within observational limits. A plausible
seismological model of Jupiter might thus be at hand provided the use
of a more realistic description of the planet interior.
Key words: planets and satellites: individual: Jupiter
Offprint request: B. Dintrans, dintrans@nordita.dk
© ESO 2001

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