Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Ripley, Justin"'
Radial mode stability is a necessary condition for the astrophysical viability of compact objects. In recent years, astrophysical models with two fluids have gain popularity, especially in their ability to model dark matter admixed neutron stars.Just
Externí odkaz:
http://arxiv.org/abs/2408.04701
Dissipative tidal interactions can be used to probe the out-of-equilibrium physics of neutron stars using gravitational wave observations. In this paper, we present the first post-Newtonian (PN) corrections to the orbital dynamics of a binary system
Externí odkaz:
http://arxiv.org/abs/2407.02584
Publikováno v:
Phys. Rev. D 110, 084034 (2024)
The ringdown gravitational wave signal arising e.g., in the final stage of a black hole binary merger, contains important information about the properties of the remnant, and can potentially be used to perform clean tests of general relativity. Howev
Externí odkaz:
http://arxiv.org/abs/2405.18303
Accurately modeling the tidal response of neutron stars is crucial to connecting gravitational wave observations of binaries to ultra-dense nuclear physics. Most current models of the tidal response of relativistic stars either assume a static respon
Externí odkaz:
http://arxiv.org/abs/2403.03254
Autor:
Zhu, Hengrui, Ripley, Justin L., Pretorius, Frans, Ma, Sizheng, Mitman, Keefe, Owen, Robert, Boyle, Michael, Chen, Yitian, Deppe, Nils, Kidder, Lawrence E., Moxon, Jordan, Nelli, Kyle C., Pfeiffer, Harald P., Scheel, Mark A., Throwe, William, Vu, Nils L.
We investigate quadratic quasinormal mode coupling in black hole spacetime through numerical simulations of single perturbed black holes using both numerical relativity and second-order black hole perturbation theory. Focusing on the dominant $\ell=|
Externí odkaz:
http://arxiv.org/abs/2401.00805
The gravitational waves (GWs) emitted by neutron star binaries probe the physics of matter at supra nuclear densities. During the late inspiral, tidal deformations raised on each star by the gravitational field of its companion depend crucially on th
Externí odkaz:
http://arxiv.org/abs/2312.11659
The intricacies of black hole ringdown analysis are amplified by the absence of a complete set of orthogonal basis functions for quasinormal modes. Although damped sinusoids effectively fit the ringdown signals from binary black hole mergers, the ris
Externí odkaz:
http://arxiv.org/abs/2309.13204
Publikováno v:
Phys. Rev. D 109, L101503 (2024)
The nonlinear character of general relativity leaves its imprint in the coalescence of two black holes, from the inspiral to the final ringdown stage. To quantify the impact of nonlinearities, we work at second order in black hole perturbation theory
Externí odkaz:
http://arxiv.org/abs/2308.14796
Publikováno v:
Phys. Rev. D 108 (2023) 10, 103037
We study the impact of out-of-equilibrium, dissipative effects on the dynamics of inspiraling neutron stars. We find that modeling dissipative processes (such as those from the stars internal effective fluid viscosity) requires that one introduce a n
Externí odkaz:
http://arxiv.org/abs/2306.15633
Out-of-equilibrium effects may play an important role in the dynamics of neutron star mergers and in heavy-ion collisions. Bemfica, Disconzi, Noronha and Kovtun (BDNK) recently derived a causal, locally well-posed, and modally stable relativistic flu
Externí odkaz:
http://arxiv.org/abs/2305.09725