37 citations · 68 across the 9 of their papers we have counts for
10 papers
Interpreting effective homogeneous rheologies through a local differential map with application to the Moon
Yeva Gevorgyan
Layered viscoelastic interiors control the frequency dependence of planetary tidal dissipation, but repeated layered Love-number calculations are expensive in long-term orbital and…
Bregman-projected mirror methods for regularized stationary mean-field games
Hussain Al Abdulaziz, Yuri Ashrafyan, Yeva Gevorgyan +1
We develop and analyze a Bregman-projected mirror iteration for low-order regularizations of stationary mean-field game (MFG) systems in their natural Banach space setting. For sep…
A user-friendly package and workflow for generating effective homogeneous rheologies for the study of the long-term orbital evolution of multilayered planetary bodies
Yeva Gevorgyan
We present a user-friendly, open-source Wolfram Language package that automates the construction of an effective homogeneous generalized Voigt rheology for a spherically symmetric,…
Synchronisation of a tidal binary by inward orbital migration. The case of Pluto and Charon
Michael Efroimsky, Michaela Walterova, Yeva Gevorgyan +3
It is usually taken for granted that mutual synchronisation of a tidal two-body system is attained through tidal recession, assuming the reduced Hill sphere is not reached. However…
A Simplified Model for the Forced Libration of Icy Moons with Subsurface Oceans: Application to Enceladus and Mimas
Yeva Gevorgyan
We investigate a simple two-layered viscoelastic rheological model capable of replicating the forced librations of an icy moon with a subsurface ocean. We show that the model, comp…
Equivalence between simple multilayered and homogeneous laboratory-based rheological models in planetary science
Yeva Gevorgyan, Isamu Matsuyama, Clodoaldo Ragazzo
The goal of this work is to investigate under which circumstances the tidal response of a stratified body can be approximated by that of a homogeneous body. We show that any multil…
Librations of a body composed of a deformable mantle and a fluid core
Clodoaldo Ragazzo, Gwenaël Boué, Yeva Gevorgyan +1
We present fully three-dimensional equations to describe the rotations of a body made of a deformable mantle and a fluid core. The model in its essence is similar to that used by I…
Homogeneous model for the TRAPPIST-1e planet with an icy layer
Yeva Gevorgyan
In this work we investigate whether a multilayered planet can be approximated as a homogeneous planet, and in particular how well the dissipation rate of a multilayered planet can…
Andrade rheology in time-domain. Application to Enceladus' dissipation of energy due to forced libration
Yeva Gevorgyan, Gwenaël Boué, Clodoaldo Ragazzo +2
The main purpose of this work is to present a time-domain implementation of the Andrade rheology, instead of the traditional expansion in terms of a Fourier series of the tidal pot…
Approximate probabilistic cellular automata for the dynamics of single-species populations under discrete logisticlike growth with and without weak Allee effects
J. Ricardo G. Mendonça, Yeva Gevorgyan
We investigate one-dimensional elementary probabilistic cellular automata (PCA) whose dynamics in first-order mean-field approximation yields discrete logisticlike growth models fo…