The 3-dimensional Rotation of Titan, and the Possibility of a Resonant Wobble

Benoît Noyelles; Anne Lemaître; Alain Vienne

The 3-dimensional Rotation of Titan, and the Possibility of a Resonant Wobble

Benoît Noyelles, Anne Lemaître, Alain Vienne

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Résumé

We performed a 3-dimensional theory of the rotation of Titan, seen as a rigid body. Using an analytical model, we determine the frequencies of the free librations around the exact Cassini state, which are respectively 2.1, 167 and 306 years. Then we use the numerical tool and the complete ephemerides (TASS 1.6) of the orbital motion of Titan to give a complete 3-dimensional theory of the rotation of Titan, given in a synthetic form thanks to frequency analysis. This study allows us to detect a likely resonance forcing the wobble of Titan. This resonance is being studied analytically, and we show that it could force the wobble of Titan of several degrees.

langue originale	Anglais
Etat de la publication	Publié - 2008
Evénement	39th Meeting of the Division of Dynamical Astronomy (American Astronomical Society) - Boulder, USA Durée: 28 avr. 2008 → …

Une conférence

Une conférence	39th Meeting of the Division of Dynamical Astronomy (American Astronomical Society)
La ville	Boulder, USA
période	28/04/08 → …

Contient cette citation

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abstract = "We performed a 3-dimensional theory of the rotation of Titan, seen as a rigid body. Using an analytical model, we determine the frequencies of the free librations around the exact Cassini state, which are respectively 2.1, 167 and 306 years. Then we use the numerical tool and the complete ephemerides (TASS 1.6) of the orbital motion of Titan to give a complete 3-dimensional theory of the rotation of Titan, given in a synthetic form thanks to frequency analysis. This study allows us to detect a likely resonance forcing the wobble of Titan. This resonance is being studied analytically, and we show that it could force the wobble of Titan of several degrees. ",

author = "Beno{\^i}t Noyelles and Anne Lema{\^i}tre and Alain Vienne",

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T1 - The 3-dimensional Rotation of Titan, and the Possibility of a Resonant Wobble

AU - Noyelles, Benoît

AU - Lemaître, Anne

AU - Vienne, Alain

PY - 2008

Y1 - 2008

N2 - We performed a 3-dimensional theory of the rotation of Titan, seen as a rigid body. Using an analytical model, we determine the frequencies of the free librations around the exact Cassini state, which are respectively 2.1, 167 and 306 years. Then we use the numerical tool and the complete ephemerides (TASS 1.6) of the orbital motion of Titan to give a complete 3-dimensional theory of the rotation of Titan, given in a synthetic form thanks to frequency analysis. This study allows us to detect a likely resonance forcing the wobble of Titan. This resonance is being studied analytically, and we show that it could force the wobble of Titan of several degrees.

AB - We performed a 3-dimensional theory of the rotation of Titan, seen as a rigid body. Using an analytical model, we determine the frequencies of the free librations around the exact Cassini state, which are respectively 2.1, 167 and 306 years. Then we use the numerical tool and the complete ephemerides (TASS 1.6) of the orbital motion of Titan to give a complete 3-dimensional theory of the rotation of Titan, given in a synthetic form thanks to frequency analysis. This study allows us to detect a likely resonance forcing the wobble of Titan. This resonance is being studied analytically, and we show that it could force the wobble of Titan of several degrees.

M3 - Abstract

T2 - 39th Meeting of the Division of Dynamical Astronomy (American Astronomical Society)

Y2 - 28 April 2008

ER -

The 3-dimensional Rotation of Titan, and the Possibility of a Resonant Wobble

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