3 papers
astro-ph.EP2026
Laplace-Legendre expansion of the planar planetary Hamiltonian
Aya Alnajjarine, Jacques Laskar, Federico Mogavero
We explore a hybrid expansion of the disturbing function in planetary dynamics that combines elements of the classical Laplace and Legendre developments. This formulation retains t…
astro-ph.EP2025
Giant Outer Transiting Exoplanet Mass (GOTEM) Survey.VII. TOI-6041: a multi-planet system including a warm Neptune exhibiting strong TTVs
N. Heidari, A. Alnajjarine, H. P. Osborn +101
We present the characterization of the TOI-6041 system, a bright () G7-type star hosting at least two planets. The inner planet, TOI-6041b, is a warm Neptune wit…
astro-ph.EP2025
Numerical approach to second-order canonical perturbation theory in the planetary 3-body problem: Application to exoplanets
Aya Alnajjarine, Federico Mogavero, Jacques Laskar
Extrasolar planetary systems commonly exhibit planets on eccentric orbits, with many systems located near or within mean-motion resonances, showcasing a wide diversity of orbital a…