LA RECHERCHE A L'IMCCE

The research activities carried out at IMCCE concern as well theoretical part as applied part of celestial mechanics. The study of the dynamical systems, researches in Mathematics, space astrometry, ground-based astrometry of the objects of the Solar System and their applications to planetology, are the main scientific interests of the laboratory.

The scientific objectives of IMCCE are globally, to improve our knowledge of the planetary motions and of the structure and evolution of the gravitational systems. The involved celestial bodies are all the Solar System bodies, from the small ones such as the meteoroids, to the biggest ones such as the big planets. Several means as well theoretical ones (celestial mechanics, physics, mathematics,...) as practical ones (campaigns of observation, astrometric methods,...) are involved.

Specific efforts are carried out in order to develop dynamical models of high accuracy for the planets and the natural satellites. These models are applied in particular to the interpretation of space observations. Several extended activities are recently been performed in new domains such as the use of high angular resolution to study multiple asteroids, the study of extrasolar planets, or the study of the Oort cloud and the long period comets. Several discoveries have been done and new results have been obtained.

RESEARCH TEAMS AT THE IMCCE

Research teams :
Since 2005, IMCCE iincludes two research teams :

• Astronomie et systèmes dynamiques (ASD,Astronomy and Dynamical Systems)
• Groupe astrométrie et planétologie (GAP, Astrometry and Planetology Group)

Astrometry and Planetology (GAP team)

• Dynamical modeling of the planetary natural satellites
• Study of comets transport from the Oort cloud
• Dynamical modeling and physics of the meteoroids streams and parent comets
• Planetary analytical therories
• Modeling and radio or optical observations of meteoroids streams
• Planetology of comets and asteroids, in particular the targets of space missions
• Campaigns of observations of phenomena involving dynamics of natural satellites and asteroids
• Study of astrometric methods in adaptive optics
• High angular resolution study of planetary satellites, and satellites of asteroids
• Astrometry and photometry for the characterisation of asteroids, in particular NEAs
• Data mining of astrometric archives: identification and study of NEAs
• Development of data bases (NSDC: Natural Satellites Data Center)

Astronomy and dynamical systems (ASD team)

• Numerical modeling of high accuracy of the planetary system and the Moon-Earth system
• Dynamical planetary models for very long term
• Formation, evolution and stability of planetary and extrasolar systems
• Dissipative effects and geophysical consequences
• Planetary rotation and long term evolution of the rotational parameters and obliquity
• Earth rotation and theory of precession-nutation
• Mars and Earth paleoclimates
• Numerical methods: frequency analysis, symplectic integration
• Formal calculus
• Dynamics of the particle accelerators
• Hamiltonian systems
• N body problem

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