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Main Belt Binary Asteroidal Systems With Eccentric Mutual Orbits
F. Marchis, P. Descamps, J. Berthier +5
Using 8m-10m class telescopes and their Adaptive Optics (AO) systems, we conducted a long-term adaptive optics campaign initiated in 2003 focusing on four binary asteroid systems:…
Main Belt Binary Asteroidal Systems With Circular Mutual Orbits
F. Marchis, P. Descamps, M. Baek +5
In 2003, we initiated a long-term adaptive optics campaign to study the orbit of various main-belt asteroidal systems. Here we present a consistent solution for the mutual orbits o…
Near-Infrared Mapping and Physical Properties of the Dwarf-Planet Ceres
Benoit Carry, Christophe Dumas, Marcello Fulchignoni +5
We study the physical characteristics (shape, dimensions, spin axis direction, albedo maps, mineralogy) of the dwarf-planet Ceres based on high-angular resolution near-infrared obs…
Origin of volatiles in the Main Belt
Olivier Mousis, Yann Alibert, Daniel Hestroffer +5
We propose a scenario for the formation of the Main Belt in which asteroids incorporated icy particles formed in the outer Solar Nebula. We calculate the composition of icy planete…
A low density of 0.8 g/cc for the Trojan binary asteroid 617 Patroclus
Franck Marchis, Daniel Hestroffer, Pascal Descamps +15
The Trojan population consists of two swarms of asteroids following the same orbit as Jupiter and located at the L4 and L5 Lagrange points of the Jupiter-Sun system (leading and fo…
Asteroids. From Observations to Models
Daniel Hestroffer, Paolo Tanga
We will discuss some specific applications to the rotation state and the shapes of moderately large asteroids, and techniques of observations putting some emphasis on the HST/FGS i…