Kepler-90 system has a set of eight planets in a hierarchical structure. In this work, we used
frequency analysis to study several Kepler-90 analogues to analyse in detail how the values …

The Kepler-11 planetary system hosts at least six transiting super-Earth planets detected
through the precise photometric observations of the Kepler mission (Lissauer et al.). In this …

The planet Kepler-16b is known to follow a circumbinary orbit around a system of two main-
sequence stars. We construct stability diagrams in the" pericentric distance–eccentricity" …

ABSTRACT A significant fraction of Kepler systems are closely packed, largely coplanar,
and circular. We study the stability of a six-planet system, Kepler-11, to gain insights on the …

ABSTRACT A key component of characterizing multi-planet exosystems is testing the orbital
stability based on the observed properties. Such characterization not only tests the validity of …

The presence of mean-motion resonances (MMRs) in exoplanetary systems is a new
exciting field of celestial mechanics which motivates us to consider this work to study the …

Among the numerous discoveries resulting from the Kepler mission are a plethora of
compact planetary systems that provide deep insights into planet formation theories. The …

Transit timing variations of planets in Kepler-27 were already reported in some papers, but
the entire characterisation of them is still an open subject. Our main motivation for this paper …

In this paper, we consider the chain of resonances in the Kepler-80 system and evaluate the
impact that the additional member of the resonant chain discovered by Shallue & …

Although resonant planets have orbital periods near commensurability, resonance is also
dictated by other factors, such as the planets' eccentricities and masses, and therefore must …