Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 019 |
| Seitenumfang | 14 |
| Fachzeitschrift | Journal of Cosmology and Astroparticle Physics |
| Jahrgang | 2019 |
| Ausgabenummer | 2 |
| Publikationsstatus | Veröffentlicht - 12 Feb. 2019 |
Abstract
We use the Pearson cross-correlation statistic proposed by Liu and Jackson [1], and employed by Creswell et al. [2], to look for statistically significant correlations between the LIGO Hanford and Livingston detectors at the time of the binary black hole merger GW150914. We compute this statistic for the calibrated strain data released by LIGO, using both the residuals provided by LIGO and using our own subtraction of a maximum-likelihood waveform that is constructed to model binary black hole mergers in general relativity. To assign a significance to the values obtained, we calculate the cross-correlation of both simulated Gaussian noise and data from the LIGO detectors at times during which no detection of gravitational waves has been claimed. We find that after subtracting the maximum likelihood waveform there are no statistically significant correlations between the residuals of the two detectors at the time of GW150914.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Astronomie und Astrophysik
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in: Journal of Cosmology and Astroparticle Physics, Jahrgang 2019, Nr. 2, 019, 12.02.2019.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Investigating the noise residuals around the gravitational wave event GW150914
AU - Nielsen, Alex B.
AU - Nitz, Alexander H.
AU - Capano, Collin D.
AU - Brown, Ducan A.
N1 - Funding Information: We thank Sylvia Zhu, Sebastian Khan, Peter Shawhan, Martin Green, and John Moffat for their comments. We acknowledge the Max Planck Gesellschaft for support. ABN and DAB thank Andrew Jackson, Hao Liu and Pavel Naselsky for helpful discussions and the 2017 Kavli Summer Program in Astrophysics at the Niels Bohr Institute in Copenhagen and DARK University of Copenhagen for support during this work. The 2017 Kavli Summer Program program was supported by the Kavli Foundation, Danish National Research Foundation (DNRF), the Niels Bohr International Academy and DARK. DAB thanks Will Farr for helpful discussions and NSF award PHY-1707954 for support.
PY - 2019/2/12
Y1 - 2019/2/12
N2 - We use the Pearson cross-correlation statistic proposed by Liu and Jackson [1], and employed by Creswell et al. [2], to look for statistically significant correlations between the LIGO Hanford and Livingston detectors at the time of the binary black hole merger GW150914. We compute this statistic for the calibrated strain data released by LIGO, using both the residuals provided by LIGO and using our own subtraction of a maximum-likelihood waveform that is constructed to model binary black hole mergers in general relativity. To assign a significance to the values obtained, we calculate the cross-correlation of both simulated Gaussian noise and data from the LIGO detectors at times during which no detection of gravitational waves has been claimed. We find that after subtracting the maximum likelihood waveform there are no statistically significant correlations between the residuals of the two detectors at the time of GW150914.
AB - We use the Pearson cross-correlation statistic proposed by Liu and Jackson [1], and employed by Creswell et al. [2], to look for statistically significant correlations between the LIGO Hanford and Livingston detectors at the time of the binary black hole merger GW150914. We compute this statistic for the calibrated strain data released by LIGO, using both the residuals provided by LIGO and using our own subtraction of a maximum-likelihood waveform that is constructed to model binary black hole mergers in general relativity. To assign a significance to the values obtained, we calculate the cross-correlation of both simulated Gaussian noise and data from the LIGO detectors at times during which no detection of gravitational waves has been claimed. We find that after subtracting the maximum likelihood waveform there are no statistically significant correlations between the residuals of the two detectors at the time of GW150914.
KW - GR black holes
KW - gravitational waves / experiments
KW - gravitational waves / sources
UR - http://www.scopus.com/inward/record.url?scp=85062468873&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1811.04071
DO - 10.48550/arXiv.1811.04071
M3 - Article
AN - SCOPUS:85062468873
VL - 2019
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
SN - 1475-7516
IS - 2
M1 - 019
ER -