Gravitational wave echoes search with combs

Ren, Jing; Wu, Di

doi:10.1103/physrevd.104.124023

Cited by 8 publications

(11 citation statements)

References 40 publications

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“…In conclusion, we think that the possible phenomenology exposed by this investigation should be taken into account in future searches for echoes in ringdown signals. In fact, the strategies adopted in these searches are usually based on the quasi-periodicity of the echoes signal [27,28], a feature that we showed can be partially lost in more realistic scenarios. This seems to indicate that future generic searches for echoes, agnostic to any specific model of BH mimickers, should give way to more model-dependent analyses which would take into account the stability, or metastability, of such objects.…”

Section: Discussionmentioning

confidence: 99%

“…We show that this leads to a non-constant time delay between echoes and thus the loss of the typical quasi-periodicity predicted for these signals. This is particularly interesting if we think that the strategies used in the searches for echoes in the GW ringdown [27][28][29] are usually based on the aforementioned quasi-periodicity. Indeed, in Ref.…”

Section: Introductionmentioning

confidence: 99%

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Echoes from backreacting exotic compact objects

Vellucci¹,

Franzin²,

Liberati³

2022

Preprint

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The possible detection of echoes in late gravitational-wave signals is the most promising way to test horizonless alternatives to general relativistic black holes, and probe the physics of these hypothetical ultra-compact objects. While there is currently no evidence for the presence of such signatures, better accuracy is expected with the growing wealth of data from gravitational waves observatories. So far, several searches for these specific signals have been performed considering equidistant intervals between consecutive echoes, i.e. quasi-periodic wave-forms, and ignoring possible backreaction effects of the incoming waves. Here we study scalar perturbations in exotic compact object scenarios that account for possible backreaction phenomena. In particular, we find that if one considers the increase of the central object mass due to the partial absorption of the energy carried by the perturbation, the echo signal can be quite different and non-periodic. Apart from this simple scenario, we also consider the case in which, in order to preserve its compactness above the black hole limit, the compact object absorption shuts down in a finite amount of time or leads to an expansion. In both these cases we find interesting new features that should be taken into account in future searches.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Echoes from backreacting exotic compact objects

Vellucci¹,

Franzin²,

Liberati³

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…These observations create the need for a range of ionization yield measurements. Here, we present the result of an ionization yield measurement in silicon using data taken with a cryogenic detector [27,28] as part of a neutron scattering experiment called IMPACT (Ionization Measurement with Phonons At Cryogenic Temperatures).…”

mentioning

confidence: 99%

“…The silicon detector is a 1-cm 2 -square and 4-mm-thick SuperCDMS HVeV detector [27,28] measuring the total phonon energy (denoted as E t with unit keV t ) generated following particle scattering. The detector is operated at 52 mK in an Adiabatic Demagnetization Refrigerator (ADR).…”

mentioning

confidence: 99%

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First measurement of the nuclear-recoil ionization yield in silicon at 100 eV

Albakry,

Alkhatib,

Alonso

et al. 2023

Preprint

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Toward establishing the presence or absence of horizons in coalescing binaries of compact objects by using their gravitational wave signals

et al. 2022

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The quest for distinguishing black holes from horizonless compact objects using gravitational wave signals from coalescing compact binaries can be helped by utilizing the phenomenon of tidal heating, which leaves its imprint on the binary waveforms through the horizon parameters. These parameters, defined as H 1 and H 2 with H 1;2 ∈ ½0; 1 for the two compact objects, are combined with the binary components' masses and spins to form two new parameters, H eff5 and H eff8 , to minimize their covariances in parameter estimation studies. In this work, we investigate the effects of tidal heating on gravitational waves to probe the observability of these effective parameters. We use a post-Newtonian waveform that includes the phase contribution due to tidal heating as a function of H eff5 and H eff8 , and we examine their 1σ measurement errors as well as the covariances between them mainly using the Fisher matrix approach. Since this approach works well for high signal-to-noise ratios, we focus primarily on the third-generation (3G) gravitational wave detectors Einstein Telescope and Cosmic Explorer and use the second-generation (2G) detector network of LIGO (Hanford, Livingston) and Virgo for comparison. We study how the errors vary with the binaries' total mass, mass ratio, luminosity distance, and component spins. We find that the regions in the total binary mass where measurements of H eff5 and H eff8 are most precise are ∼20-30 M ⊙ for LIGO-Virgo and ∼50-80 M ⊙ for the 3G detectors. Higher component spins allow more precise measurements of H eff5 and H eff8 . For a binary situated at 200 Mpc with component masses 12 M ⊙ and 18 M ⊙ , equal spins χ 1 ¼ χ 2 ¼ 0.8, and H eff5 ¼ 0.6, H eff8 ¼ 12, the 1σ errors in these two parameters are ∼0.01 and ∼0.04, respectively, in 3G detectors. These estimates suggest that precise measurements of the horizon parameters are possible in third-generation detectors, making tidal heating a potential tool to identify the presence or absence of horizons in coalescing compact binaries. We substantiate our results from Fisher studies with a set of Bayesian simulations.

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Gravitational wave echoes search with combs

Cited by 8 publications

References 40 publications

Echoes from backreacting exotic compact objects

Echoes from backreacting exotic compact objects

First measurement of the nuclear-recoil ionization yield in silicon at 100 eV

Toward establishing the presence or absence of horizons in coalescing binaries of compact objects by using their gravitational wave signals

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