39 citations · 53 across the 8 of their papers we have counts for
10 papers
TIC 366240660 - A Dynamically Active Triple With a Very Short Outer Period of 30.5 Days
S. A. Rappaport, T. Borkovits, G. Torres +17
Methods: We analyze TESS photometric data, radial velocity measurements, and eclipse timing variation curves for the triple star system, TIC 366240660, with a photodynamical code t…
Misaligned rings around minor planets with moons
Barnabás Deme
Recent observations have confirmed the existence of rings around minor bodies in the outer Solar System. These objects may possess satellites as well. Here we analytically investig…
Thermodynamic blocking in self-gravitating systems
Barnabás Deme, Jean-Baptiste Fouvry
Building upon a thermodynamic formalism, we show that self-gravitating systems in hydrostatic equilibrium with a uniform density are maximal entropy states when submitted to pertur…
On the secular evolution of the semi-major axis in canonical formalism
Barnabás Deme
There are several astrophysical configurations where one is interested only in the long-term dynamical evolution. Although the first-order version of this approximation is usually…
Lagrange's planetary equations with time-dependent secular perturbations
Barnabás Deme
The long-term evolution of astrophysical systems is driven by a Hamiltonian that is independent of the fast angle. As this Hamiltonian may contain explicitly time-dependent paramet…
Milankovitch equations with spinors
Barnabás Deme, Jean-Baptiste Fouvry
We investigate the use of spinors to describe the secular evolution of quasi-Keplerian systems. Evaluating their Poisson brackets, we show that the components of a properly-chosen…
Describing the hierarchical gravitational three-body problem with force and torque vectors
Barnabás Deme
We investigate the hierarchical gravitational three-body problem, in which a binary is perturbed by a distant object that orbits on a Keplerian ellipse around the binary itself. Th…
A canonical transformation to eliminate resonant perturbations I
Barnabás Deme, Bence Kocsis
We study dynamical systems which admit action-angle variables at leading order which are subject to nearly resonant perturbations. If the frequencies characterizing the unperturbed…
Detecting Kozai-Lidov imprints on the gravitational waves of intermediate-mass black holes in galactic nuclei
Barnabás Deme, Bao-Minh Hoang, Smadar Naoz +1
A third object in the vicinity of a binary system causes variations in the eccentricity and the inclination of the binary through the Kozai-Lidov effect. We examine if such variati…
Intermediate mass black holes' effect on compact object binaries
Barnabás Deme, Yohai Meiron, Bence Kocsis
Although their existence is not yet confirmed observationally, intermediate mass black holes (IMBHs) may play a key role in the dynamics of galactic nuclei. In this paper, we negle…