Details
| Original language | English |
|---|---|
| Article number | 215014 |
| Journal | Classical and quantum gravity |
| Volume | 37 |
| Issue number | 21 |
| Publication status | Published - 9 Oct 2020 |
Abstract
The output of gravitational-wave interferometers, such as LIGO and Virgo, can be highly non-stationary. Broadband detector noise can affect the detector sensitivity on the order of tens of seconds. Gravitational-wave transient searches, such as those for colliding black holes, estimate this noise in order to identify gravitational-wave events. During times of non-stationarity we see a higher rate of false events being reported. To accurately separate signal from noise, it is imperative to incorporate the changing detector state into gravitational-wave searches. We develop a new statistic which estimates the variation of the interferometric detector noise. We use this statistic to re-rank candidate events identified during LIGO-Virgo's second observing run by the PyCBC search pipeline. This results in a 5% improvement in the sensitivity volume for low mass binaries, particularly binary neutron stars mergers.
Keywords
- gravitational waves, interferometric noise, matched-filter search, non-stationarity
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Classical and quantum gravity, Vol. 37, No. 21, 215014, 09.10.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Dynamic normalization for compact binary coalescence searches in non-stationary noise
AU - Mozzon, S.
AU - Nuttall, L. K.
AU - Lundgren, A.
AU - Dent, T.
AU - Kumar, S.
AU - Nitz, A. H.
PY - 2020/10/9
Y1 - 2020/10/9
N2 - The output of gravitational-wave interferometers, such as LIGO and Virgo, can be highly non-stationary. Broadband detector noise can affect the detector sensitivity on the order of tens of seconds. Gravitational-wave transient searches, such as those for colliding black holes, estimate this noise in order to identify gravitational-wave events. During times of non-stationarity we see a higher rate of false events being reported. To accurately separate signal from noise, it is imperative to incorporate the changing detector state into gravitational-wave searches. We develop a new statistic which estimates the variation of the interferometric detector noise. We use this statistic to re-rank candidate events identified during LIGO-Virgo's second observing run by the PyCBC search pipeline. This results in a 5% improvement in the sensitivity volume for low mass binaries, particularly binary neutron stars mergers.
AB - The output of gravitational-wave interferometers, such as LIGO and Virgo, can be highly non-stationary. Broadband detector noise can affect the detector sensitivity on the order of tens of seconds. Gravitational-wave transient searches, such as those for colliding black holes, estimate this noise in order to identify gravitational-wave events. During times of non-stationarity we see a higher rate of false events being reported. To accurately separate signal from noise, it is imperative to incorporate the changing detector state into gravitational-wave searches. We develop a new statistic which estimates the variation of the interferometric detector noise. We use this statistic to re-rank candidate events identified during LIGO-Virgo's second observing run by the PyCBC search pipeline. This results in a 5% improvement in the sensitivity volume for low mass binaries, particularly binary neutron stars mergers.
KW - gravitational waves
KW - interferometric noise
KW - matched-filter search
KW - non-stationarity
UR - http://www.scopus.com/inward/record.url?scp=85094571171&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2002.09407
DO - 10.48550/arXiv.2002.09407
M3 - Article
AN - SCOPUS:85094571171
VL - 37
JO - Classical and quantum gravity
JF - Classical and quantum gravity
SN - 0264-9381
IS - 21
M1 - 215014
ER -