Context. High-spatial resolution Atacama Large Millimeter/submillimeter Array (ALMA) data
have revealed a plethora of substructures in protoplanetary disks. Some of those features …

Determining the orbital eccentricity of an extrasolar planet is critically important for
understanding the system's dynamical environment and history. However, eccentricity is …

Context. Only several doubly eclipsing quadruple stellar systems are known to date, and no
dedicated effort to characterize population properties of these interesting objects has yet …

Context. Co-orbital objects, also known as trojans, are frequently found in simulations of
planetary system formation. In these configurations, a planet shares its orbit with other …

Aims. Trojans are defined as objects that share the orbit of a planet at the stable Lagrangian
points L 4 and L 5. In the Solar System, these bodies show a broad size distribution ranging …

In previous hydrodynamical simulations, we found a mechanism for nearly circular binary
stars, such as Kepler-413, to trap two planets in a stable 1: 1 resonance. Therefore, the …

Despite the existence of co-orbital bodies in the solar system, and the prediction of the
formation of co-orbital planets by planetary system formation models, no co-orbital …

The maximum eccentricity method (MEM,(Dvorak et al. in Astron Astrophys 426 (2): L37–
L40, 2004)) is a standard tool for the analysis of planetary systems and their stability. The …

Since exoplanets were detected using the radial velocity method, they have revealed a
diverse distribution of orbital configurations. Among these are planets in highly eccentric …

Co-orbital planets have not yet been discovered, although they constitute a frequent by-
product of planetary formation and evolution models. This lack may be due to observational …