Publications (9)
On Binary Formation from Three Initially Unbound Bodies
Dany Atallah, Newlin C. Weatherford, Alessandro A. Trani +1
We explore three-body binary formation (3BBF), the formation of a bound system via gravitational scattering of three initially unbound bodies (3UB), using direct numerical integrat…
Relativistic Calculations of Coalescing Binary Neutron Stars
Joshua Faber, Philippe Grandclément, Frederic Rasio
We have designed and tested a new relativistic Lagrangian hydrodynamics code, which treats gravity in the conformally flat approximation to general relativity. We have tested the r…
The Stability and Dynamics of Planets in Tight Binary Systems
Lamya Saleh, Frederic Rasio
Planets have been observed in tight binary systems with separations less than 20 AU. A likely formation scenario for such systems involves a dynamical capture, after which high rel…
Tidal Disruptions of Stars by Black Hole Remnants in Dense Star Clusters
Kyle Kremer, Wenbin Lu, Carl L. Rodriguez +2
In a dense stellar environment, such as the core of a globular cluster (GC), dynamical interactions with black holes (BHs) are expected to lead to a variety of astrophysical transi…
Mergers of Black Hole -- Neutron Star binaries. I. Methods and First Results
Emmanouela Rantsiou, Shiho Kobayashi, Pablo Laguna +1
We use a 3-D relativistic SPH (Smoothed Particle Hydrodynamics) code to study mergers of black hole -- neutron star (BH--NS) binary systems with low mass ratios, adopting $M_{NS}/M…
Monte-Carlo Simulations of Globular Cluster Evolution - I. Method and Test Calculations
Kriten Joshi, Frederic Rasio, Simon Portegies Zwart
We present a new parallel supercomputer implementation of the Monte-Carlo method for simulating the dynamical evolution of globular star clusters. Our method is based on a modified…
Relativistic SPH Calculations of Compact Binary Mergers
Frederic Rasio, Joshua Faber, Shiho Kobayashi +1
We review recent progress in understanding the hydrodynamics of compact binary mergers using relativistic smoothed particle hydrodynamics (SPH) codes. Recent results are discussed…
Outcomes of Grazing Impacts Between Sub-Neptunes in Kepler Multis
Jason Hwang, Sourav Chatterjee, James Lombardi +2
Studies of high-multiplicity, tightly-packed planetary systems suggest that dynamical instabilities are common and affect both the orbits and planet structures, where the compact o…
Dynamical Interactions and the Black Hole Merger Rate of the Universe
Ryan O'Leary, Richard O'Shaughnessy, Frederic Rasio
Binary black holes can form efficiently in dense young stellar clusters, such as the progenitors of globular clusters, via a combination of gravitational segregation and cluster ev…