Mock data study for next-generation ground-based detectors: The performance loss of matched filtering due to correlated confusion noise
arXiv:2209.03135 · doi:10.1103/PhysRevD.107.063022
Abstract
The next-generation (3G/XG) ground-based gravitational-wave (GW) detectors such as Einstein Telescope (ET) and Cosmic Explorer (CE) will begin observing in the next decade. Due to the extremely high sensitivity of these detectors, the majority of stellar-mass compact-binary mergers in the entire Universe will be observed. It is also expected that 3G detectors will have significant sensitivity down to 2-7 Hz; the observed duration of binary neutron star signals could increase to several hours or days. The abundance and duration of signals will cause them to overlap in time, which may form a confusion noise that could affect the detection of individual GW sources when using naive matched filtering; matched filtering is only optimal for stationary Gaussian noise. We create mock data for CE and ET using the latest population models informed by the GWTC-3 catalog and investigate the performance loss of matched filtering due to overlapping signals. We find the performance loss mainly comes from a deviation in the noise's measured amplitude spectral density. The redshift reach of CE (ET) can be reduced by 15%-38% (8%-21%) depending on the merger rate estimate. The direct contribution of confusion noise to the total signal-to-noise ratio (SNR) is generally negligible compared to the contribution from instrumental noise. We also find that correlated confusion noise has a negligible effect on the quadrature summation rule of network SNR for ET, but might reduce the network SNR of high detector-frame mass signals for detector networks including CE if no mitigation is applied. For ET, the null stream can mitigate the astrophysical foreground. For CE, we demonstrate that a computationally efficient, straightforward single-detector signal subtraction method suppresses the total noise to almost the instrument noise level; this will allow for near-optimal searches.
22 pages, 10 figures, this version updates Fig.7, accepted by PRD https://journals.aps.org/prd/abstract/10.1103/PhysRevD.107.063022, public code: https://github.com/gwastro/confusion-noise-3g
References in corpus (42)
- Array Programming with NumPy
- GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
- Cosmic Star Formation History
- Constraining neutron star tidal Love numbers with gravitational wave detectors
- Exploring the Sensitivity of Next Generation Gravitational Wave Detectors
- Primordial Black Holes as Dark Matter
- Observation of gravitational waves from two neutron star-black hole coalescences
- Comparison of post-Newtonian templates for compact binary inspiral signals in gravitational-wave detectors
- The TianQin project: current progress on science and technology
- Gravity Spy: Integrating Advanced LIGO Detector Characterization, Machine Learning, and Citizen Science
- Multipolar Effective-One-Body Waveforms for Precessing Binary Black Holes: Construction and Validation
- The rate, luminosity function and time delay of non-Collapsar short GRBs
- The First Round Result from the TianQin-1 Satellite
- Prospects for doubling the range of Advanced LIGO
- Global Analysis of the Gravitational Wave Signal from Galactic Binaries
- Coherent network analysis technique for discriminating gravitational-wave bursts from instrumental noise
- Gravitational waves from inspiralling compact binaries: hexagonal template placement and its efficiency in detecting physical signals
- A Solution to the Galactic Foreground Problem for LISA
- Triple Michelson Interferometer for a Third-Generation Gravitational Wave Detector
- Review of the Advanced LIGO gravitational wave observatories leading to observing run four
- Gravitational-wave confusion background from cosmological compact binaries: Implications for future terrestrial detectors
- Search for gravitational waves from the coalescence of sub-solar mass binaries in the first half of Advanced LIGO and Virgo's third observing run
- Building a stochastic template bank for detecting massive black hole binaries
- Searching for stochastic gravitational waves using data from the two co-located LIGO Hanford detectors
- Searching for cosmological gravitational-wave backgrounds with third-generation detectors in the presence of an astrophysical foreground
- Maximum redshift of gravitational wave merger events
- Subtraction-noise projection in gravitational-wave detector networks
- Template Bank for Compact Binary Coalescence Searches in Gravitational Wave Data: A General Geometric Placement Algorithm
- Pre-merger localization of compact-binary mergers with third generation observatories
- Dancing in the dark: detecting a population of distant primordial black holes
- Inferring the maximum and minimum mass of merging neutron stars with gravitational waves
- Population Properties of Gravitational-Wave Neutron Star--Black Hole Mergers
- Addressing the challenges of detecting time-overlapping compact binary coalescences
- Prospects for improving the sensitivity of the cryogenic gravitational wave detector KAGRA
- Utilizing the null stream of the Einstein Telescope
- Matter Effects on LIGO/Virgo Searches for Gravitational Waves from Merging Neutron Stars
- Data Analysis of Gravitational Waves Using A Network of Detectors
- Null-stream veto for two co-located detectors: Implementation issues
- Multi-detector null-stream-based statistic for compact binary coalescence searches
- Performance of Random Template Banks
- Correlation of Gravitational Wave Background Noises and Statistical Loss for Angular Averaged Sensitivity Curves
- LISA Gravitational Wave Sources in A Time-Varying Galactic Stochastic Background
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- Enabling multi-messenger astronomy with continuous gravitational waves: early warning and sky localization of binary neutron stars in Einstein Telescope
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