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6 papers · 2 filters
Gravitational waveforms for compact binaries from second-order self-force theory
Barry Wardell, Adam Pound, Niels Warburton +3
We produce gravitational waveforms for nonspinning compact binaries undergoing a quasicircular inspiral. Our approach is based on a two-timescale expansion of the Einstein equation…
Quasi-isometric embedding of Kerr poloidal sub-manifolds
L. Chantry, F. Dauvergne, Y. Temmam +1
We propose two approaches to obtain an isometric embedding of the poloidal Kerr sub-manifold. The first one relies on the convex integration process using the corrugation from a pr…
New classes of exact interior nonvacuum solutions to the GR field equations for spacetimes sourced by a rigidly rotating stationary cylindrical anisotropic fluid
Marie-Noëlle Célérier
A double new class of solutions to the general relativity field equations describing interior spacetimes sourced by stationary cylindrical anisotropic fluids with principal stress…
A new public code for initial data of unequal-mass, spinning compact-object binaries
L. Jens Papenfort, Samuel D. Tootle, Philippe Grandclément +2
The construction of constraint-satisfying initial data is an essential element for the numerical exploration of the dynamics of compact-object binaries. While several codes have be…
Equatorial orbits and imaging of hairy cubic Galileon black holes
Karim Van Aelst, Eric Gourgoulhon, Frederic H. Vincent
Null and timelike equatorial orbits are investigated in a family of hairy black holes in the cubic Galileon theory. These include rotating generalizations of static black hole metr…
Closed Timelike Curves, Singularities and Causality: A Survey from Gödel to Chronological Protection
Jean-Pierre Luminet
I give a historical survey of the discussions about the existence of closed timelike curves in general relativistic models of the universe, opening the physical possibility of time…