33 citations · 218 across the 31 of their papers we have counts for
10 papers · 1 filter
Deus Ex Statistica: A Statistical Solution to the binary-binary Outcome of the Chaotic, Non-Hierarchical Four-Body Problem
Yoav Zack, Hagai B. Perets, Yonadav Barry Ginat
We present an analytical, statistical solution to the binary-binary (2+2) outcome of the chaotic non-hierarchical four-body problem. The solution is based on the density-of-states…
Harmonic-decomposition approach to dynamical friction for eccentric orbits
Gali Eytan, Vincent Desjacques, Yonadav Barry Ginat
Compact objects evolving in an astrophysical environment experience a gravitational drag force known as dynamical friction. We present a multipole-frequency decomposition to evalua…
Angular-momentum pairs in spherical systems: applications to the Galactic centre
Taras Panamarev, Yonadav Barry Ginat, Bence Kocsis
Consider a system of point masses in a spherical potential. In such systems objects execute planar orbits covering two-dimensional rings or annuli, represented by the angular-momen…
A Million Three-body Binaries Caught by Gaia
Dany Atallah, Yonadav Barry Ginat, Newlin C. Weatherford
Gaia observations have revealed over a million stellar binary candidates within ~1 kpc of the Sun, predominantly characterized by orbital separations >10^3 AU and eccentricities >0…
Three-Body Binary Formation in Clusters: Analytical Theory
Yonadav Barry Ginat, Hagai B. Perets
Binary formation in clusters through triple encounters between three unbound stars, 'three-body' binary formation, is one of the main dynamical formation processes of binary system…
Resonant Dynamical Friction Around a Super-Massive Black Hole: Analytical Description
Yonadav Barry Ginat, Taras Panamarev, Bence Kocsis +1
We derive an analytical model for the so-called phenomenon of `resonant dynamical friction', where a disc of stars around a super-massive black hole interacts with a massive pertur…
Binaries are softer than they seem: Effects of an external potential on the scattering dynamics of binaries
Yonadav Barry Ginat, Hagai B. Perets
Binary evolution is influenced by dynamical scattering with other stars in dense environments. Heggie's law states that, due to their environments, hard binaries (whose orbital ene…
Probing supermassive stars and massive black hole seeds through gravitational wave inspirals
Yael Raveh, Yonadav Barry Ginat, Hagai B. Perets +1
We propose a novel source of gravitational wave emission: the inspirals of compact fragments inside primordial supermassive stars (SMSs). Such systems are thought to be an essentia…
An Analytical, Statistical Approximate Solution for Dissipative and non-Dissipative Binary-Single Stellar Encounters
Yonadav Barry Ginat, Hagai B. Perets
We present a statistical approximate solution of the bound, non-hierarchical three-body problem, and extend it to a general analysis of encounters between hard binary systems and s…
The influence of mergers and ram-pressure stripping on black hole-bulge correlations
Yonadav Barry Ginat, Yohai Meiron, Noam Soker
We analyse the scatter in the correlation between super-massive black hole (SMBH) mass and bulge stellar mass of the host galaxy, and infer that it cannot be accounted for by merge…