Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Rettegno, Piero"'
Autor:
Jain, Tamanna, Rettegno, Piero
We compute the angular momentum flux from a non-circular nonspinning binary system of compact objects in massless scalar-tensor theories up to one and a half post-Newtonian (1.5PN) order using multipole moments. The angular momentum flux in scalar-te
Externí odkaz:
http://arxiv.org/abs/2407.10908
Autor:
Nagar, Alessandro, Bernuzzi, Sebastiano, Chiaramello, Danilo, Fantini, Veronica, Gamba, Rossella, Panzeri, Mattia, Rettegno, Piero
Effective-one-body (EOB) models are based on analytical building blocks that, mathematically, are truncated Taylor series with logarithms. These polynomials are usually resummed using Pad\'e approximants obtained first assuming that the logarithms ar
Externí odkaz:
http://arxiv.org/abs/2407.04762
We present an updated version of the TEOBResumS-Dali effective-one-body (EOB) waveform model for spin aligned binaries on non-circularized orbits. Recently computed 4PN (nonspinning) terms are incorporated in the waveform and radiation reaction. The
Externí odkaz:
http://arxiv.org/abs/2404.05288
We build upon recent work by Antonelli et al. [Phys. Rev. Lett. 125 (2020) 1, 011103] to obtain, within the effective-one-body (EOB) formalism, and for an arbitrary choice of gauge, the third-subleading post-Newtonian (4.5PN) corrections to the spin-
Externí odkaz:
http://arxiv.org/abs/2401.12290
We look for a classical double copy structure between gravity and electrodynamics by connecting the descriptions of the scattering of two point masses, and of two point charges, in terms of perturbative (post-Minkowskian or post-Lorentzian) expansion
Externí odkaz:
http://arxiv.org/abs/2312.01478
We compute the leading order contribution to radiative losses in the case of spinning binaries with aligned spins due to their spin-orbit interaction. The orbital average along hyperboliclike orbits is taken through an appropriate spin-orbit modifica
Externí odkaz:
http://arxiv.org/abs/2307.12670
Highly accurate models of the gravitational-wave signal from coalescing compact binaries are built by completing analytical computations of the binary dynamics with non-perturbative information from numerical relativity (NR) simulations. In this pape
Externí odkaz:
http://arxiv.org/abs/2307.06999
Autor:
Nagar, Alessandro, Rettegno, Piero, Gamba, Rossella, Albanesi, Simone, Albertini, Angelica, Bernuzzi, Sebastiano
Publikováno v:
Phys.Rev.D 108 (2023) 12, 124018
The success of analytic waveform modeling within the effective-one-body (EOB) approach relies on the precise understanding of the physical importance of each technical element included in the model. The urgency of constructing progressively more soph
Externí odkaz:
http://arxiv.org/abs/2304.09662
We determine the general local-in-time effective-one-body (EOB) Hamiltonian for massless Scalar-Tensor (ST) theories at third post-Newtonian (PN) order. Starting from the Lagrangian derived in [Phys. Rev. D 99, 044047 (2019)], we map it to the corres
Externí odkaz:
http://arxiv.org/abs/2211.15580
Autor:
Damour, Thibault, Rettegno, Piero
We compare numerical relativity (NR) data on the scattering of equal-mass, non-spinning binary black holes to various analytical predictions based on post-Minkowskian (PM) results. While the usual sequence of PM-expanded scattering angles shows a rat
Externí odkaz:
http://arxiv.org/abs/2211.01399