139 citations · 749 across the 49 of their papers we have counts for
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Vector Resonant Relaxation of Stars around a Massive Black Hole
Jean-Baptiste Fouvry, Ben Bar-Or, Pierre-Henri Chavanis
In the vicinity of a massive black hole, stars move on precessing Keplerian orbits. The mutual stochastic gravitational torques between the stellar orbits drive a rapid reorientati…
Instabilities in disc galaxies: from noise to grooves to spirals
Sven De Rijcke, Jean-Baptiste Fouvry, Christophe Pichon
Using the linearized Boltzmann equation, we investigate how grooves carved in the phase space of a half-mass Mestel disc can trigger the vigorous growth of two-armed spiral eigenmo…
How gravitational softening affects galaxy stability I. Linear mode analysis of disc galaxies
Sven De Rijcke, Jean-Baptiste Fouvry, Walter Dehnen
Linear perturbation is used to investigate the effect of gravitational softening on the retrieved two-armed spiral eigenmodes of razor-thin stellar discs. We explore four softening…
Relaxation in a Fuzzy Dark Matter Halo
Ben Bar-Or, Jean-Baptiste Fouvry, Scott Tremaine
Dark matter may be composed of light bosons, , with a de Broglie wavelength in typical galactic potentials. Such `fuzzy'…
Revisiting relaxation in globular clusters
Chris Hamilton, Jean-Baptiste Fouvry, James Binney +1
The classical theory of cluster relaxation is unsatisfactory because it involves the Coulomb logarithm. The Balescu-Lenard (BL) equation provides a rigorous alternative that has no…
Scalar Resonant Relaxation of Stars Around a Massive Black Hole
Ben Bar-Or, Jean-Baptiste Fouvry
In nuclear star clusters, the potential is governed by the central massive black hole, so that stars move on nearly Keplerian orbits and the total potential is almost stationary in…