A morphology-independent search for gravitational wave echoes in data from the first and second observing runs of Advanced LIGO and Advanced Virgo

Autor: Katerina Chatziioannou, Archisman Ghosh, K. W. Tsang, A. Samajdar, S. Mastrogiovanni, M. Agathos, Chris Van Den Broeck
Přispěvatelé: AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), IoP (FNWI), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Jazyk: angličtina
Rok vydání: 2020
Předmět:
data analysis method
noise
neutron star: binary
Astrophysics::High Energy Astrophysical Phenomena
FOS: Physical sciences
alternative theories of gravity
Binary number
General Relativity and Quantum Cosmology (gr-qc)
Astrophysics
gravitational radiation: direct detection
01 natural sciences
General Relativity and Quantum Cosmology
symbols.namesake
Binary black hole
0103 physical sciences
LIGO
numerical calculations
010306 general physics
Physics
010308 nuclear & particles physics
Gravitational wave
Noise (signal processing)
gravitational radiation
statistical analysis: Bayesian
gravitational radiation detector
Neutron star
VIRGO
black hole: binary
General relativity
Gaussian noise
gravitational radiation: emission
neutron star: binary: coalescence
[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]
symbols
Glitch (astronomy)
Zdroj: Phys.Rev.D
Phys.Rev.D, 2020, 101 (6), pp.064012. ⟨10.1103/PhysRevD.101.064012⟩
Physical Review D
Physical Review D, American Physical Society, 2020, 101 (6), pp.064012. ⟨10.1103/PhysRevD.101.064012⟩
Physical Review D, 101(6), 064012
Physical Review D. Particles, Fields, Gravitation, and Cosmology, 101(6):064012. American Institute of Physics
ISSN: 1550-2368
1550-7998
2470-0010
DOI: 10.1103/PhysRevD.101.064012⟩
Popis: Gravitational wave echoes have been proposed as a smoking-gun signature of exotic compact objects with near-horizon structure. Recently there have been observational claims that echoes are indeed present in stretches of data from Advanced LIGO and Advanced Virgo immediately following gravitational wave signals from presumed binary black hole mergers, as well as a binary neutron star merger. In this paper we deploy a morphology-independent search algorithm for echoes introduced in Tsang et al., Phys. Rev. D 98, 024023 (2018), which (a) is able to accurately reconstruct a possible echoes signal with minimal assumptions about their morphology, and (b) computes Bayesian evidences for the hypotheses that the data contain a signal, an instrumental glitch, or just stationary, Gaussian noise. Here we apply this analysis method to all the significant events in the first Gravitational Wave Transient Catalog (GWTC-1), which comprises the signals from binary black hole and binary neutron star coalescences found during the first and second observing runs of Advanced LIGO and Advanced Virgo. In all cases, the ratios of evidences for signal versus noise and signal versus glitch do not rise above their respective "background distributions" obtained from detector noise, the smallest $p$-value being 3% (for event GW170823). Hence we find no statistically significant evidence for echoes in GWTC-1.
6 pages, 5 figures, 2 tables
Databáze: OpenAIRE
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