112 citations · 604 across the 11 of their papers we have counts for
11 papers
Simulations of inspiraling and merging double neutron stars using the Spectral Einstein Code
Roland Haas, Christian D. Ott, Bela Szilagyi +11
We present results on the inspiral, merger, and post-merger evolution of a neutron star - neutron star (NSNS) system. Our results are obtained using the hybrid pseudospectral-finit…
Gravitational waveforms for neutron star binaries from binary black hole simulations
Kevin Barkett, Mark A. Scheel, Roland Haas +9
Gravitational waves from binary neutron star (BNS) and black hole/neutron star (BHNS) inspirals are primary sources for detection by the Advanced Laser Interferometer Gravitational…
Binary Neutron Stars with Arbitrary Spins in Numerical Relativity
Nick Tacik, Francois Foucart, Harald P. Pfeiffer +8
We present a code to construct initial data for binary neutron star systems in which the stars are rotating. Our code, based on a formalism developed by Tichy, allows for arbitrary…
The Influence of Thermal Pressure on Equilibrium Models of Hypermassive Neutron Star Merger Remnants
J. D. Kaplan, C. D. Ott, E. P. O'Connor +3
The merger of two neutron stars leaves behind a rapidly spinning hypermassive object whose survival is believed to depend on the maximum mass supported by the nuclear equation of s…
On Toroidal Horizons in Binary Black Hole Inspirals
Michael I. Cohen, Jeffrey D. Kaplan, Mark A. Scheel
We examine the structure of the event horizon for numerical simulations of two black holes that begin in a quasicircular orbit, inspiral, and finally merge. We find that the spatia…
Visualizing Spacetime Curvature via Frame-Drag Vortexes and Tidal Tendexes I. General Theory and Weak-Gravity Applications
David A. Nichols, Robert Owen, Fan Zhang +8
When one splits spacetime into space plus time, the Weyl curvature tensor (vacuum Riemann tensor) gets split into two spatial, symmetric, and trace-free (STF) tensors: (i) the Weyl…
Frame-Dragging Vortexes and Tidal Tendexes Attached to Colliding Black Holes: Visualizing the Curvature of Spacetime
Robert Owen, Jeandrew Brink, Yanbei Chen +8
When one splits spacetime into space plus time, the spacetime curvature (Weyl tensor) gets split into an "electric" part E_{jk} that describes tidal gravity and a "magnetic" part B…
Momentum flow in black-hole binaries: II. Numerical simulations of equal-mass, head-on mergers with antiparallel spins
Geoffrey Lovelace, Yanbei Chen, Michael Cohen +6
Research on extracting science from binary-black-hole (BBH) simulations has often adopted a "scattering matrix" perspective: given the binary's initial parameters, what are the fin…
Post-Newtonian Approximation in Maxwell-Like Form
Jeffrey D. Kaplan, David A. Nichols, Kip S. Thorne
The equations of the linearized first post-Newtonian approximation to general relativity are often written in "gravitoelectromagnetic" Maxwell-like form, since that facilitates phy…
On the Formation and Progenitor of PSR J0737-3039: New Constraints on the Supernova Explosion Forming Pulsar B
B. Willems, J. Kaplan, T. Fragos +2
We revisit the formation of PSR J0737-3039, taking into account the most recent observational constraints. We show that the most likely kick velocity and progenitor parameters depe…
Bounds on Expected Black Hole Spins in Inspiraling Binaries
R. O'Shaughnessy, J. Kaplan, V. Kalogera +1
As a first step towards understanding the angular momentum evolution history of black holes in merging black-hole/neutron-star binaries, we perform population synthesis calculation…