Showing 2007 · gr-qcShow all

12 papers · 2 filters

gr-qc2007★ 43 cited

High accuracy simulations of Kerr tails: coordinate dependence and higher multipoles

Manuel Tiglio, Lawrence Kidder, Saul Teukolsky

We investigate the late time behavior of a scalar field on a fixed Kerr background using a 2+1 dimensional pseudospectral evolution code. We compare evolutions of pure axisymmetric…

gr-qc2007★ 175 cited

Using Full Information When Computing Modes of Post-Newtonian Waveforms From Inspiralling Compact Binaries in Circular Orbit

Lawrence E. Kidder

The increasing sophistication and accuracy of numerical simulations of compact binaries (especially binary black holes) presents the opportunity to test the regime in which post-Ne…

gr-qc2007★ 21 cited

Numerical Simulations of Oscillating Soliton Stars: Excited States in Spherical Symmetry and Ground State Evolutions in 3D

Jayashree Balakrishna, Ruxandra Bondarescu, Gregory Daues +1

Excited state soliton stars are studied numerically for the first time. The stability of spherically symmetric S-branch excited state oscillatons under radial perturbations is inve…

gr-qc2007★ 3 cited

Finite Mirror Effects in Advanced Interferometric Gravitational Wave Detectors

Andrew P. Lundgren, Ruxandra Bondarescu, David Tsang +1

Thermal noise is expected to be the dominant source of noise in the most sensitive frequency band of second generation ground based gravitational wave detectors. Reshaping the beam…

gr-qc2007★ 394 cited

High-accuracy comparison of numerical relativity simulations with post-Newtonian expansions

Michael Boyle, Duncan A. Brown, Lawrence E. Kidder +5

Numerical simulations of 15 orbits of an equal-mass binary black hole system are presented. Gravitational waveforms from these simulations, covering more than 30 cycles and ending…

gr-qc2007★ 29 cited

Radiation reaction in the 2.5PN waveform from inspiralling binaries in circular orbits

Lawrence E. Kidder, Luc Blanchet, Bala R. Iyer

In this Comment we compute the contributions of the radiation reaction force in the 2.5 post-Newtonian (PN) gravitational wave polarizations for compact binaries in circular orbits…

gr-qc2007★ 63 cited

Can Gravity Probe B usefully constrain torsion gravity theories?

Eanna E. Flanagan, Eran Rosenthal

In most theories of gravity involving torsion, the source for torsion is the intrinsic spin of matter. Since the spins of fermions are normally randomly oriented in macroscopic bod…

gr-qc2007★ 32 cited

Evolution of the Carter constant for inspirals into a black hole: effect of the black hole quadrupole

Eanna E. Flanagan, Tanja Hinderer

We analyze the effect of gravitational radiation reaction on generic orbits around a body with an axisymmetric mass quadrupole moment Q to linear order in Q, to the leading post-Ne…

gr-qc2007★ 50 cited

A generalization of Ryan's theorem: probing tidal coupling with gravitational waves from nearly circular, nearly equatorial, extreme-mass-ratio inspirals

Chao Li, Geoffrey Lovelace

Extreme-mass-ratio inspirals (EMRIs) and intermediate-mass-ratio inspirals (IMRIs)--binaries in which a stellar-mass object spirals into a massive black hole or other massive, comp…

gr-qc2007★ 3 cited

Evolving relativistic fluid spacetimes using pseudospectral methods and finite differencing

Matthew D. Duez, Lawrence E. Kidder, Saul A. Teukolsky

We present a new code for solving the coupled Einstein-hydrodynamics equations to evolve relativistic, self-gravitating fluids. The Einstein field equations are solved on one grid…

gr-qc2007★ 212 cited

Reducing orbital eccentricity in binary black hole simulations

Harald P. Pfeiffer, Duncan A. Brown, Lawrence E. Kidder +3

Binary black hole simulations starting from quasi-circular (i.e., zero radial velocity) initial data have orbits with small but non-zero orbital eccentricities. In this paper the q…

gr-qc2007

The Final Fate of Binary Neutron Stars: What Happens After the Merger?

Matthew D. Duez, Yuk Tung Liu, Stuart L. Shapiro +2

The merger of two neutron stars usually produces a remnant with a mass significantly above the single (nonrotating) neutron star maximum mass. In some cases, the remnant will be st…