Analysis of Ringdown Overtones in GW150914

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Analysis of Ringdown Overtones in GW150914. / Cotesta, Roberto; Carullo, Gregorio; Berti, Emanuele; Cardoso, Vitor.

I: Physical Review Letters, Bind 129, Nr. 11, 111102, 09.09.2022.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Cotesta, R, Carullo, G, Berti, E & Cardoso, V 2022, 'Analysis of Ringdown Overtones in GW150914', Physical Review Letters, bind 129, nr. 11, 111102. https://doi.org/10.1103/PhysRevLett.129.111102

APA

Cotesta, R., Carullo, G., Berti, E., & Cardoso, V. (2022). Analysis of Ringdown Overtones in GW150914. Physical Review Letters, 129(11), [111102]. https://doi.org/10.1103/PhysRevLett.129.111102

Vancouver

Cotesta R, Carullo G, Berti E, Cardoso V. Analysis of Ringdown Overtones in GW150914. Physical Review Letters. 2022 sep. 9;129(11). 111102. https://doi.org/10.1103/PhysRevLett.129.111102

Author

Cotesta, Roberto ; Carullo, Gregorio ; Berti, Emanuele ; Cardoso, Vitor. / Analysis of Ringdown Overtones in GW150914. I: Physical Review Letters. 2022 ; Bind 129, Nr. 11.

Bibtex

@article{490aded4963d429ba0fbaf4e56d5cb18,
title = "Analysis of Ringdown Overtones in GW150914",
abstract = "We analyze GW150914 postmerger data to understand if ringdown overtone detection claims are robust. We find no evidence in favor of an overtone in the data after the waveform peak. Around the peak, the Bayes factor does not indicate the presence of an overtone, while the support for a nonzero amplitude is sensitive to changes in the starting time much smaller than the overtone damping time. This suggests that claims of an overtone detection are noise dominated. We perform GW150914-like injections in neighboring segments of the real detector noise, and we show that noise can indeed induce artificial evidence for an overtone.",
keywords = "COLLAPSING RELATIVISTIC STARS, GRAVITATIONAL-WAVES, RADIATION",
author = "Roberto Cotesta and Gregorio Carullo and Emanuele Berti and Vitor Cardoso",
year = "2022",
month = sep,
day = "9",
doi = "10.1103/PhysRevLett.129.111102",
language = "English",
volume = "129",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Analysis of Ringdown Overtones in GW150914

AU - Cotesta, Roberto

AU - Carullo, Gregorio

AU - Berti, Emanuele

AU - Cardoso, Vitor

PY - 2022/9/9

Y1 - 2022/9/9

N2 - We analyze GW150914 postmerger data to understand if ringdown overtone detection claims are robust. We find no evidence in favor of an overtone in the data after the waveform peak. Around the peak, the Bayes factor does not indicate the presence of an overtone, while the support for a nonzero amplitude is sensitive to changes in the starting time much smaller than the overtone damping time. This suggests that claims of an overtone detection are noise dominated. We perform GW150914-like injections in neighboring segments of the real detector noise, and we show that noise can indeed induce artificial evidence for an overtone.

AB - We analyze GW150914 postmerger data to understand if ringdown overtone detection claims are robust. We find no evidence in favor of an overtone in the data after the waveform peak. Around the peak, the Bayes factor does not indicate the presence of an overtone, while the support for a nonzero amplitude is sensitive to changes in the starting time much smaller than the overtone damping time. This suggests that claims of an overtone detection are noise dominated. We perform GW150914-like injections in neighboring segments of the real detector noise, and we show that noise can indeed induce artificial evidence for an overtone.

KW - COLLAPSING RELATIVISTIC STARS

KW - GRAVITATIONAL-WAVES

KW - RADIATION

U2 - 10.1103/PhysRevLett.129.111102

DO - 10.1103/PhysRevLett.129.111102

M3 - Journal article

C2 - 36154425

VL - 129

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 11

M1 - 111102

ER -

ID: 323158675