pith. machine review for the scientific record. sign in

arxiv: 1701.06318 · v2 · submitted 2017-01-23 · 🌀 gr-qc · astro-ph.HE

Recognition: unknown

Testing the binary black hole nature of a compact binary coalescence

N. V. Krishnendu , K. G. Arun , Chandra Kant Mishra
Authors on Pith no claims yet
classification 🌀 gr-qc astro-ph.HE
keywords compactbinaryblackholequadrupolebinariesmomentnature
0
0 comments X
read the original abstract

We propose a novel method to test the binary black hole (BBH) nature of compact binaries detectable by gravitational wave (GW) interferometers and hence constrain the parameter space of other exotic compact objects. The spirit of the test lies in the "no-hair" conjecture for black holes where all properties of a black hole are characterised by the mass and the spin of the black hole. The method relies on observationally measuring the quadrupole moments of the compact binary constituents induced due to their spins. If the compact object is a Kerr black hole (BH), its quadrupole moment is expressible solely in terms of its mass and spin. Otherwise, the quadrupole moment can depend on additional parameters (such as equation of state of the object). The higher order spin effects in phase and amplitude of a gravitational waveform, which explicitly contains the spin-induced quadrupole moments of compact objects, hence uniquely encodes the nature of the compact binary. Thus we argue that an independent measurement of the spin-induced quadrupole moment of the compact binaries from GW observations can provide a unique way to distinguish binary BH systems from binaries consisting of exotic compact objects.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Testing the Kerr hypothesis beyond the quadrupole with GW241011

    gr-qc 2026-04 unverdicted novelty 8.0

    GW241011 data shows consistency with Kerr black holes for both quadrupole and octupole moments and delivers the first observational bounds on spin-induced octupole deviations.

  2. Lessons from binary dynamics of inspiralling equal-mass boson-star mergers

    gr-qc 2026-04 unverdicted novelty 7.0

    Numerical simulations of equal-mass boson-star mergers reveal larger waveform deviations from black-hole binaries in late inspiral and merger, plus odd multipole excitations for certain scalar-field phases, with some ...

  3. Tests of General Relativity with Binary Black Holes from the second LIGO-Virgo Gravitational-Wave Transient Catalog

    gr-qc 2020-10 accept novelty 5.0

    No evidence for deviations from general relativity is found in LIGO-Virgo binary black hole events, with improved constraints on waveform parameters, graviton mass, and ringdown properties.

  4. Improved Constraints on Non-Kerr Deviations from Binary Black Hole Inspirals Using GWTC-4 Data

    gr-qc 2026-04 unverdicted novelty 3.0

    Bayesian constraints from GWTC-4 binary black hole inspirals show Johannsen metric deformation parameters α13 and ε3 consistent with zero, supporting the Kerr hypothesis.

  5. Tests of General Relativity with GWTC-3

    gr-qc 2021-12 accept novelty 3.0

    No evidence for physics beyond general relativity is found in the analysis of 15 GW events from GWTC-3, with consistency in residuals, PN parameters, and remnant properties.