Showing 2011 · gr-qcShow all

12 papers · 2 filters

gr-qc2011★ 56 cited

A Class of Effective Field Theory Models of Cosmic Acceleration

Jolyon K. Bloomfield, Eanna E. Flanagan

We explore a class of effective field theory models of cosmic acceleration involving a metric and a single scalar field. These models can be obtained by starting with a set of ultr…

gr-qc2011★ 69 cited

Black hole-neutron star mergers for 10 solar mass black holes

Francois Foucart, Matthew D. Duez, Lawrence E. Kidder +3

General relativistic simulations of black hole-neutron star mergers have currently been limited to low-mass black holes (less than 7 solar mass), even though population synthesis m…

gr-qc2011★ 97 cited

Accurate gravitational waveforms for binary-black-hole mergers with nearly extremal spins

Geoffrey Lovelace, Michael Boyle, Mark A. Scheel +1

Motivated by the possibility of observing gravitational waves from merging black holes whose spins are nearly extremal (i.e., 1 in dimensionless units), we present numerical wavefo…

gr-qc2011★ 130 cited

A geometric approach to the precession of compact binaries

Michael Boyle, Robert Owen, Harald P. Pfeiffer

We discuss a geometrical method to define a preferred reference frame for precessing binary systems and the gravitational waves they emit. This minimal-rotation frame is aligned wi…

gr-qc2011★ 19 cited

Luminosity distance in Swiss cheese cosmology with randomized voids. II. Magnification probability distributions

Éanna É. Flanagan, Naresh Kumar, Ira Wasserman +1

We study the fluctuations in luminosity distances due to gravitational lensing by large scale (> 35 Mpc) structures, specifically voids and sheets. We use a simplified "Swiss chees…

gr-qc2011★ 79 cited

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…

gr-qc2011★ 261 cited

Inspiral-merger-ringdown multipolar waveforms of nonspinning black-hole binaries using the effective-one-body formalism

Yi Pan, Alessandra Buonanno, Michael Boyle +4

We calibrate an effective-one-body (EOB) model to numerical-relativity simulations of mass ratios 1, 2, 3, 4, and 6, by maximizing phase and amplitude agreement of the leading (2,2…

gr-qc2011★ 43 cited

OSS (Outer Solar System): A fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt

Bruno Christophe, Linda J. Spilker, John D. Anderson +46

The present OSS mission continues a long and bright tradition by associating the communities of fundamental physics and planetary sciences in a single mission with ambitious goals…

gr-qc2011★ 15 cited

Implicit-explicit (IMEX) evolution of single black holes

Stephen R. Lau, Geoffrey Lovelace, Harald P. Pfeiffer

Numerical simulations of binary black holes---an important predictive tool for the detection of gravitational waves---are computationally expensive, especially for binaries with hi…

gr-qc2011★ 44 cited

Uncertainty in hybrid gravitational waveforms: Optimizing initial orbital frequencies for binary black-hole simulations

Michael Boyle

A general method is presented for estimating the uncertainty in hybrid models of gravitational waveforms from binary black-hole systems with arbitrary physical parameters, and then…

gr-qc2011★ 344 cited

Post-1-Newtonian tidal effects in the gravitational waveform from binary inspirals

Justin Vines, Tanja Hinderer, Éanna É. Flanagan

The gravitational wave signal from an inspiralling binary neutron star system will contain detailed information about tidal coupling in the system, and thus, about the internal phy…

gr-qc2011★ 36 cited

Covariant formulation of the post-1-Newtonian approximation to General Relativity

Wolfgang Tichy, Eanna E. Flanagan

We derive a coordinate-independent formulation of the post-1-Newtonian approximation to general relativity. This formulation is a generalization of the Newton-Cartan geometric form…