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66 papers · 2 filters
Spin-orbit coupling and chaotic rotation for eccentric coorbital bodies
Adrien Leleu, Philippe Robutel, A. C. M. Correia
The presence of a co-orbital companion induces the splitting of the well known Keplerian spin-orbit resonances. It leads to chaotic rotation when those resonances overlap.
Deformation and tidal evolution of close-in planets and satellites using a Maxwell viscoelastic rheology
Alexandre C. M. Correia, Gwenaël Boué, Jacques Laskar +1
In this paper we present a new approach to tidal theory. Assuming a Maxwell viscoelastic rheology, we compute the instantaneous deformation of celestial bodies using a differential…
The small binary asteroid (939) Isberga
B. Carry, A. Matter, P. Scheirich +29
In understanding the composition and internal structure of asteroids, their density is perhaps the most diagnostic quantity. We aim here to characterize the surface composition, mu…
The MgI line: a new probe of the atmospheres of evaporating exoplanets
V. Bourrier, A. Lecavelier des Etangs, A. Vidal-Madjar
Transit observations of HD209458b in the UV revealed signatures of neutral magnesium escaping the planet's upper atmosphere. The absorption detected in the MgI line provides unprec…
Pathway to the Galactic Distribution of Planets: Combined Spitzer and Ground-Based Microlens Parallax Measurements of 21 Single-Lens Events
S. Calchi Novati, A. Gould, A. Udalski +82
We present microlens parallax measurements for 21 (apparently) isolated lenses observed toward the Galactic bulge that were imaged simultaneously from Earth and Spitzer, which was…
Coupling the non-gravitational forces and Modified Newton Dynamics for cometary orbits
Lucie Maquet, Frédéric Pierret
In recent work (Milgrom 2009, Blanchet & Novak 2011), the authors showed that MOdified Newton Dynamics (MOND) have a non-negligible secular perturbation effect on planets with larg…