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A parametrized test of general relativity for inspiralling eccentric binaries in LISA
Pankaj Saini, Sylvain Marsat, Lorenz Zwick +2
The space-based detector Laser Interferometer Space Antenna (LISA) will observe inspiralling black hole binaries in the mHz band, many of which may retain orbital eccentricity. In…
Spin contributions to the gravitational-waveform modes for spin-aligned binaries at the 3.5PN order
Quentin Henry, Sylvain Marsat, Mohammed Khalil
We complete the post-Newtonian (PN) prediction at the 3.5PN order for the spin contributions to the gravitational waveforms emitted by inspiraling compact binaries, in the case of…
The mass quadrupole moment of compact binary systems at the fourth post-Newtonian order
Tanguy Marchand, Quentin Henry, François Larrouturou +3
The mass-type quadrupole moment of inspiralling compact binaries (without spins) is computed at the fourth post-Newtonian (4PN) approximation of general relativity. The multipole m…
Conservative Dynamics of Binary Systems of Compact Objects at the Fourth Post-Newtonian Order
Laura Bernard, Luc Blanchet, Alejandro Bohé +2
We review our recent derivation of a Fokker action describing the conservative dynamics of a compact binary system at the fourth post-Newtonian (4PN) approximation of general relat…
Dimensional regularization of the IR divergences in the Fokker action of point-particle binaries at the fourth post-Newtonian order
Laura Bernard, Luc Blanchet, Alejandro Bohé +2
The Fokker action of point-particle binaries at the fourth post-Newtonian (4PN) approximation of general relativity has been determined previously. However two ambiguity parameters…
Energy and periastron advance of compact binaries on circular orbits at the fourth post-Newtonian order
Laura Bernard, Luc Blanchet, Alejandro Bohé +2
In this paper, we revisit and complete our preceding work on the Fokker Lagrangian describing the dynamics of compact binary systems at the fourth post-Newtonian (4PN) order in har…
Fokker action of non-spinning compact binaries at the fourth post-Newtonian approximation
Laura Bernard, Luc Blanchet, Alejandro Bohé +2
The Fokker action governing the motion of compact binary systems without spins is derived in harmonic coordinates at the fourth post-Newtonian approximation (4PN) of general relati…
Quadratic-in-spin effects in the orbital dynamics and gravitational-wave energy flux of compact binaries at the 3PN order
Alejandro Bohé, Guillaume Faye, Sylvain Marsat +1
We investigate the dynamics of spinning binaries of compact objects at the next-to-leading order in the quadratic-in-spin effects, which corresponds to the third post-Newtonian ord…
Cubic order spin effects in the dynamics and gravitational wave energy flux of compact object binaries
Sylvain Marsat
We investigate cubic-in-spin effects for inspiralling compact objects binaries, both in the dynamics and the energy flux emitted in gravitational waves, at the leading post-Newtoni…
Gravitational waves from spinning compact object binaries: New post-Newtonian results
Sylvain Marsat, Luc Blanchet, Alejandro Bohe +1
We report on recent results obtained in the post-Newtonian framework for the modelling of the gravitational waves emitted by binary systems of spinning compact objects (black holes…
Next-to-leading tail-induced spin-orbit effects in the gravitational radiation flux of compact binaries
Sylvain Marsat, Alejandro Bohe, Luc Blanchet +1
The imprint of non-linearities in the propagation of gravitational waves --- the tail effect --- is responsible for new spin contributions to the energy flux and orbital phasing of…
Next-to-next-to-leading order spin-orbit effects in the gravitational wave flux and orbital phasing of compact binaries
Alejandro Bohe, Sylvain Marsat, Luc Blanchet
We compute the next-to-next-to-leading order spin-orbit contributions in the total energy flux emitted in gravitational waves by compact binary systems. Such contributions correspo…
Next-to-next-to-leading order spin-orbit effects in the near-zone metric and precession equations of compact binaries
Alejandro Bohé, Sylvain Marsat, Guillaume Faye +1
We extend our previous work devoted to the computation of the next-to-next-to-leading order spin-orbit correction (corresponding to 3.5PN order) in the equations of motion of spinn…
Post-Newtonian prediction for the (2,2) mode of the gravitational wave emitted by compact binaries
Guillaume Faye, Sylvain Marsat, Luc Blanchet +1
We present our 3.5PN computation of the (2,2) mode of the gravitational wave amplitude emitted by compact binaries, on quasi-circular orbits and in the absence of spins. We use the…
Next-to-next-to-leading order spin-orbit effects in the equations of motion of compact binary systems
Sylvain Marsat, Alejandro Bohe, Guillaume Faye +1
We compute next-to-next-to-leading order spin contributions to the post-Newtonian equations of motion for binaries of compact objects, such as black holes or neutron stars. For max…
Non-Gaussianity in the Cosmic Microwave Background Induced by Dipolar Dark Matter
Luc Blanchet, David Langlois, Alexandre Le Tiec +1
In previous work [L. Blanchet and A. Le Tiec, Phys. Rev. D 80, 023524 (2009)], motivated by the phenomenology of dark matter at galactic scales, a model of dipolar dark matter (DDM…
Relativistic MOND theory based on the Khronon scalar field
Luc Blanchet, Sylvain Marsat
We investigate a model of modified gravity recovering the modified Newtonian dynamics (MOND) in the non-relativistic limit, based on the introduction of a preferred time foliation…
The third and a half post-Newtonian gravitational wave quadrupole mode for quasi-circular inspiralling compact binaries
Guillaume Faye, Sylvain Marsat, Luc Blanchet +1
We compute the quadrupole mode of the gravitational waveform of inspiralling compact binaries at the third and a half post-Newtonian (3.5PN) approximation of general relativity. Th…
Modified gravity approach based on a preferred time foliation
Luc Blanchet, Sylvain Marsat
We propose, in a heuristic way, a relativistic modified gravity model as an alternative to particle dark matter at galactic scales. The model is based on a postulated preferred tim…