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Horizon-absorbed energy flux in circularized, nonspinning black-hole binaries and its effective-one-body representation
Alessandro Nagar, Sarp Akcay
We propose, within the effective one body (EOB) approach, a new, resummed, analytical representation of the gravitational wave energy flux absorbed by a system of two circularized…
Energy versus Angular Momentum in Black Hole Binaries
Thibault Damour, Alessandro Nagar, Denis Pollney +1
Using accurate numerical relativity simulations of (nonspinning) black-hole binaries with mass ratios 1:1, 2:1 and 3:1 we compute the gauge invariant relation between the (reduced)…
Binary black hole coalescence in the large-mass-ratio limit: the hyperboloidal layer method and waveforms at null infinity
Sebastiano Bernuzzi, Alessandro Nagar, Anil Zenginoglu
We compute and analyze the gravitational waveform emitted to future null infinity by a system of two black holes in the large mass ratio limit. We consider the transition from the…
Effective one body Hamiltonian of two spinning black-holes with next-to-next-to-leading order spin-orbit coupling
Alessandro Nagar
Building on the recently computed next-to-next-to-leading order (NNLO) post-Newtonian (PN) spin-orbit Hamiltonian for spinning binaries \cite{Hartung:2011te} we extend the effectiv…
Accurate numerical simulations of inspiralling binary neutron stars and their comparison with effective-one-body analytical models
Luca Baiotti, Thibault Damour, Bruno Giacomazzo +2
Binary neutron-star systems represent one of the most promising sources of gravitational waves. In order to be able to extract important information, notably about the equation of…