REVIEW 8 cited by
Role of black hole quasinormal mode overtones for ringdown analysis
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
Extracting quasinormal modes from compact binary mergers to perform black hole spectroscopy is one of the fundamental pillars in current and future strong-gravity tests. Among the most remarkable findings of recent works is that including a large number of overtones not only reduces the mismatch of the fitted ringdown but also allows one to extract black hole parameters from a ringdown analysis that goes well within the nonlinear merger part. At the same time, it is well understood that several details of the ringdown analysis have important consequences for the question of whether overtones are present or not, and subsequently, to what extent one can claim to perform black hole spectroscopy. To clarify and tackle some aspects of overtone fitting, we revisit the clearer problem of wave propagation in the scalar Regge-Wheeler and P\"oschl-Teller potentials. This setup, which is to some extent qualitatively very similar to the nonlinear merger-ringdown regime, indicates that using even an approximate model for the overtones yields an improved extraction of the black hole mass at early ringdown times. We find that the relevant parameter is the number of included modes rather than using the correct model for the overtones themselves. These results show that some standard tests for verifying the physical contribution of an overtone to a waveform can be misleading, and that even in the linear case it can be difficult to distinguish the presence of an excited mode from the fitting of non-QNM effects.
Forward citations
Cited by 8 Pith papers
-
Optimal frequency scales for probing black-hole geometries
A Gaussian pulse extracts the most black-hole metric information when its width is about the inverse square root of the effective-potential maximum, not when it is as narrow as possible.
-
Parametrized beyond-Teukolsky framework in the time domain
First time-domain implementation of the parametrized beyond-Teukolsky framework, validated against frequency-domain benchmarks for low multipoles and yielding new amplitude, phase, quadratic-coefficient, and tail-onse...
-
First Overtone Mode in the Ringdown Signal of GW231028
The ringdown of GW231028 contains evidence for the 221 first overtone mode alongside the dominant 220 mode, with a Bayes factor of 193 at 10M after the peak.
-
Detection of a Higher Harmonic Quasi-normal Mode in the Ringdown Signal of GW231123
The ringdown of GW231123 contains a detectable 200 quasinormal mode in addition to the fundamental 220 mode, with log10 Bayes factor 5.3, and the inferred remnant mass and spin agree with general relativity.
-
Quasinormal modes of nonlocal gravity black holes
Quasinormal frequencies of nonlocal gravity black holes deviate from Schwarzschild values by up to about 12%, and the derived bounds on the model parameters α and k depend on projected detector sensitivity.
-
Self-force framework for merger-ringdown waveforms
A phase-space self-force framework is extended through the final plunge to produce merger-ringdown waveforms at leading geodesic order, with stationary-phase and quasinormal-mode approximations both failing near the p...
-
Bound States of the Schwarzschild Black Hole
The bound states of the inverted Regge-Wheeler potential are exponentially condensed near zero energy and strongly delocalized, linking black hole overtone instability to long-range potential features.
-
Quasinormal mode content of binary black hole ringdowns
A Bayesian, evidence-based analysis of 13 simulated black-hole ringdowns tabulates which quasinormal overtones, retrograde modes, and nonlinear (quadratic and cubic) modes are present at each start time, and finds no ...
Discussion (0). Continue with ORCID to comment.