554 citations
- Max Planck Institute for Gravitational PhysicsDE14 papers
- Schiller International UniversityFR9 papers
- Universidad Michoacana de San Nicolás de HidalgoMX9 papers
- Universitat Politècnica de CatalunyaES9 papers
- Max Planck Institute for Extraterrestrial PhysicsDE8 papers
- Max Planck SocietyDE8 papers
- Centre National de la Recherche ScientifiqueFR7 papers
- Max Planck Institute for AstronomyDE7 papers
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30 papers · 1 filter
Nonlinear radial oscillations of neutron stars
Michael Gabler, Ulrich Sperhake, Nils Andersson
The effects of nonlinear oscillations in compact stars are attracting considerable current interest. In order to study such phenomena in the framework of fully nonlinear general re…
Comment on recent papers regarding next-to-leading order spin-spin effects in gravitational interaction
Jan Steinhoff, Gerhard Schäfer
It is argued that the tetrad in a recent paper by Porto and Rothstein on gravitational spin-spin coupling should not have the given form. The fixation of that tetrad was suggested…
Higher-order-in-spin interaction Hamiltonians for binary black holes from Poincaré invariance
Steven Hergt, Gerhard Schäfer
The fulfillment of the space-asymptotic Poincaré algebra is used to derive new higher-order-in-spin interaction Hamiltonians for binary black holes in the Arnowitt-Deser-Misner can…
Relativistic Closed-Form Hamiltonian for Many-Body Gravitating Systems in the Post-Minkowskian Approximation
Tomas Ledvinka, Gerhard Schaefer, Jiri Bicak
The Hamiltonian for a system of relativistic bodies interacting by their gravitational field is found in the post-Minkowskian approximation, including all terms linear in the gravi…
The high-energy collision of two black holes
U. Sperhake, V. Cardoso, F. Pretorius +2
We study the head-on collision of two highly boosted equal mass, nonrotating black holes. We determine the waveforms, radiated energies, and mode excitation in the center of mass f…
ADM canonical formalism for gravitating spinning objects
Jan Steinhoff, Gerhard Schäfer, Steven Hergt
In general relativity, systems of spinning classical particles are implemented into the canonical formalism of Arnowitt, Deser, and Misner [1]. The implementation is made with the…