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13 papers · 2 filters
Inflation without Slow Roll
Thibault Damour, Viatcheslav F. Mukhanov
We draw attention to the possibility that inflation (i.e. accelerated expansion) might continue after the end of slow roll, during a period of fast oscillations of the inflaton fie…
Spontaneous symmetry breaking of rapidly rotating stars in general relativity: influence of the 3D-shift vector
S. Bonazzola, J. Frieben, E. Gourgoulhon
An analytical scheme and a numerical method in order to study the effects of general relativity on the viscosity driven secular bar mode instability of rapidly rotating stars are p…
Quadrupole-quadrupole gravitational waves
Luc Blanchet
This paper investigates the non-linear self-interaction of quadrupole gravitational waves generated by an isolated system. The vacuum Einstein field equations are integrated in the…
A relativistic formalism to compute quasi-equilibrium configurations of non-synchronized neutron star binaries
S. Bonazzola, E. Gourgoulhon, J. -A. Marck
A general relativistic version of the Euler equation for perfect fluid hydrodynamics is applied to a system of two neutron stars orbiting each other. In the quasi-equilibrium phase…
Gravitational-wave tails of tails
Luc Blanchet
The tails of gravitational waves are caused by scattering of linear waves onto the space-time curvature generated by the total mass-energy of the source. Quite naturally, the tails…
Improved filters for gravitational waves from inspiralling compact binaries
Thibault Damour, Bala R. Iyer, B. S. Sathyaprakash
The order of the post-Newtonian expansion needed, to extract in a reliable and accurate manner the fully general relativistic gravitational wave signal from inspiralling compact bi…