English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Quasi-circular inspirals and plunges from non-spinning effective-one-body Hamiltonians with gravitational self-force information

Antonelli, A., van de Meent, M., Buonanno, A., Steinhoff, J., & Vines, J. (in preparation). Quasi-circular inspirals and plunges from non-spinning effective-one-body Hamiltonians with gravitational self-force information.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0004-96E7-E Version Permalink: http://hdl.handle.net/21.11116/0000-0004-96E8-D
Genre: Paper

Files

show Files
hide Files
:
1907.11597.pdf (Preprint), 2MB
Name:
1907.11597.pdf
Description:
File downloaded from arXiv at 2019-09-03 08:29
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
-
Copyright Info:
-

Locators

show

Creators

show
hide
 Creators:
Antonelli, Andrea1, Author              
van de Meent, Maarten1, Author              
Buonanno, Alessandra1, Author              
Steinhoff, Jan1, Author              
Vines, Justin1, Author              
Affiliations:
1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1933290              

Content

show
hide
Free keywords: General Relativity and Quantum Cosmology, gr-qc
 Abstract: The self-force program aims at accurately modeling relativistic two-body systems with a small mass ratio (SMR). In the context of the effective-one-body (EOB) framework, current results from this program can be used to determine the effective metric components at linear order in the mass ratio, resumming post-Newtonian (PN) dynamics around the test-particle limit in the process. It was shown in [Akcay et al., Phys. Rev. D 86 (2012)] that, in the original (standard) EOB gauge, the SMR contribution to the metric component $g^\text{eff}_{tt}$ exhibits a coordinate singularity at the light-ring (LR) radius. In this paper, we adopt a different gauge for the EOB dynamics and obtain a Hamiltonian that is free of poles at the LR, with complete circular-orbit information at linear order in the mass ratio and non-circular-orbit and higher-order-in-mass-ratio terms up to 3PN order. We confirm the absence of the LR-divergence in such an EOB Hamiltonian via plunging trajectories through the LR radius. Moreover, we compare the binding energies and inspiral waveforms of EOB models with SMR, PN and mixed SMR-3PN information on a quasi-circular inspiral against numerical-relativity predictions. We find good agreement between NR simulations and EOB models with SMR-3PN information for both equal and unequal mass ratios. In particular, when compared to EOB inspiral waveforms with only 3PN information, EOB Hamiltonians with SMR-3PN information improves the modeling of binary systems with small mass ratios $q \lesssim 1/3$, with a dephasing accumulated in $\sim$30 gravitational-wave (GW) cycles being of the order of few hundredths of a radian up to 4 GW cycles before merger.

Details

show
hide
Language(s):
 Dates: 2019-07-26
 Publication Status: Not specified
 Pages: 16 pages, 5 figures
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1907.11597
URI: http://arxiv.org/abs/1907.11597
 Degree: -

Event

show

Legal Case

show

Project information

show

Source

show