Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, BerkeleyUS1.3k papers
- Goddard Space Flight CenterUS1.3k papers
- California Institute of TechnologyUS1.3k papers
- The Ohio State UniversityUS1.2k papers
- Centre National de la Recherche ScientifiqueFR1.1k papers
- Massachusetts Institute of TechnologyUS1.1k papers
- University of Maryland, College ParkUS1k papers
- Center for Astrophysics Harvard & SmithsonianUS975 papers
- Lawrence Berkeley National LaboratoryUS898 papers
- University of ChicagoUS889 papers
- University of WashingtonUS868 papers
- Yale UniversityUS848 papers
31 papers · 2 filters
Hairy Black Holes, Horizon Mass and Solitons
Abhay Ashtekar, Alejandro Corichi, Daniel Sudarsky
Properties of the horizon mass of hairy black holes are discussed with emphasis on certain subtle and initially unexpected features. A key property suggests that hairy black holes…
Distorted Black Holes with Charge
Stephen Fairhurst, Badri Krishnan
We present new solutions to the Einstein-Maxwell equations representing a class of charged distorted black holes. These solutions are static-axisymmetric and are generalizations of…
Aperture synthesis for gravitational-wave data analysis: Deterministic Sources
Lee Samuel Finn
Gravitational wave detectors now under construction are sensitive to the phase of the incident gravitational waves. Correspondingly, the signals from the different detectors can be…
Perturbations of the Kerr spacetime in horizon penetrating coordinates
Manuela Campanelli, Gaurav Khanna, Pablo Laguna +2
We derive the Teukolsky equation for perturbations of a Kerr spacetime when the spacetime metric is written in either ingoing or outgoing Kerr-Schild form. We also write explicit f…
Grazing Collisions of Black Holes via the Excision of Singularities
Steve Brandt, Randall Correll, Roberto Gomez +10
We present the first simulations of non-headon (grazing) collisions of binary black holes in which the black hole singularities have been excised from the computational domain. Ini…
Data conditioning for gravitational wave detectors: A Kalman filter for regressing suspension violin mode
Lee Samuel Finn, Soma Mukherjee
Interferometric gravitational wave detectors operate by sensing the differential light travel time between free test masses. Correspondingly, they are sensitive to anything that ch…
Loop Quantum Cosmology IV: Discrete Time Evolution
Martin Bojowald
Using general features of recent quantizations of the Hamiltonian constraint in loop quantum gravity and loop quantum cosmology, a dynamical interpretation of the constraint equati…
Loop Quantum Cosmology III: Wheeler-DeWitt Operators
Martin Bojowald
In the framework of loop quantum cosmology anomaly free quantizations of the Hamiltonian constraint for Bianchi class A, locally rotationally symmetric and isotropic models are giv…
The large cosmological constant approximation to classical and quantum gravity: model examples
Rodolfo Gambini, Jorge Pullin
We have recently introduced an approach for studying perturbatively classical and quantum canonical general relativity. The perturbative technique appears to preserve many of the a…
Making classical and quantum canonical general relativity computable through a power series expansion in the inverse cosmological constant
Rodolfo Gambini, Jorge Pullin
We consider general relativity with a cosmological constant as a perturbative expansion around a completely solvable diffeomorphism invariant field theory. This theory is the $Λ\to…
The rotational modes of relativistic stars: Analytic results
Keith H. Lockitch, Nils Andersson, John L. Friedman
We study the r-modes and rotational ``hybrid'' modes of relativistic stars. As in Newtonian gravity, the spectrum of low-frequency rotational modes is highly sensitive to the stell…
Quasi-spherical approximation for rotating black holes
Hisa-aki Shinkai, Sean A. Hayward
We numerically implement a quasi-spherical approximation scheme for computing gravitational waveforms for coalescing black holes, testing it against angular momentum by applying it…
Gravitational Waves from a Compact Star in a Circular, Inspiral Orbit, in the Equatorial Plane of a Massive, Spinning Black Hole, as Observed by LISA
Lee Samuel Finn, Kip S. Thorne
Results are presented from high-precision computations of the orbital evolution and emitted gravitational waves for a stellar-mass object spiraling into a massive black hole in a s…
Three-dimensional adaptive evolution of gravitational waves in numerical relativity
Kimberly C. B. New, Dae-Il Choi, Joan M. Centrella +3
Adaptive techniques are crucial for successful numerical modeling of gravitational waves from astrophysical sources such as coalescing compact binaries, since the radiation typical…
Hyperbolic formulations and numerical relativity II: Asymptotically constrained systems of the Einstein equations
Gen Yoneda, Hisa-aki Shinkai
We study asymptotically constrained systems for numerical integration of the Einstein equations, which are intended to be robust against perturbative errors for the free evolution…
Suspensions Thermal Noise in the LIGO Gravitational Wave Detector
Gabriela González
We present a calculation of the maximum sensitivity achievable by the LIGO Gravitational wave detector in construction, due to limiting thermal noise of its suspensions. We present…
Generic Isolated Horizons and their Applications
Abhay Ashtekar, Christopher Beetle, Olaf Dreyer +4
Boundary conditions defining a generic isolated horizon are introduced. They generalize the notion available in the existing literature by allowing the horizon to have distortion a…
Quantum Geometry of Isolated Horizons and Black Hole Entropy
A. Ashtekar, J. Baez, K. Krasnov
Using the earlier developed classical Hamiltonian framework as the point of departure, we carry out a non-perturbative quantization of the sector of general relativity, coupled to…
operator for canonical quantum gravity
Yongge Ma, Yi Ling
We study the properties of operator on the kinematical Hilbert space for canonical quantum gravity. Its complete spectrum with respect to the spin network b…
Constant Crunch Coordinates for Black Hole Simulations
Adrian P. Gentle, Daniel E. Holz, Arkady Kheyfets +3
We reinvestigate the utility of time-independent constant mean curvature foliations for the numerical simulation of a single spherically-symmetric black hole. Each spacelike hypers…
Isolated Horizons: Hamiltonian Evolution and the First Law
Abhay Ashtekar, Stephen Fairhurst, Badri Krishnan
A framework was recently introduced to generalize black hole mechanics by replacing stationary event horizons with isolated horizons. That framework is significantly extended. The…
Hyperbolic formulations and numerical relativity: Experiments using Ashtekar's connection variables
Hisa-aki Shinkai, Gen Yoneda
In order to perform accurate and stable long-time numerical integration of the Einstein equation, several hyperbolic systems have been proposed. We here present numerical compariso…
Excitation of Neutron Star Oscillations by an Orbiting Particle
Johannes Ruoff, Pablo Laguna, Jorge Pullin
The excitation of neutron stars is expected to be an important source of gravitational radiation. Of fundamental importance is then to investigate mechanisms that trigger oscillati…
Generic Tracking of Multiple Apparent Horizons with Level Flow
Deirdre M. Shoemaker, Mijan F. Huq, Richard A. Matzner
We report the development of the first apparent horizon locator capable of finding multiple apparent horizons in a ``generic'' numerical black hole spacetime. We use a level-flow m…