coherent WaveBurst
coherent WaveBurst (cWB) is a data-analysis tool to search for a broad range of gravitational-wave (GW) transients. The pipeline identifies coincident events in the GW data from earth-based interferometric detectors and reconstructs the gravitational wave signal by using a constrained maximum likelihood approach. coherent WaveBurst was the first algorithm to identify the gravitational wave signal GW150914 detected by LIGO .
First shots of GW150914 event detected by coherent Waveburst - Livingston (left), Hanford (right)
Infos
Note
- The cWB library is publicly available (here) under the:
Note
The current public version of cWB (cWB-6.4.6.0) is the one used for the LVK O4b analysis. It can also be found on:
Important
Some instructions and documents reported in this manual are addressed only to LIGO-Virgo-KAGRA Collaboration (LVK) / cWB developers or for Public Version users.
LVK users are marked as: |
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cWB developers are marked as: |
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Public Version Only is marked as: |
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Important
Somewhat outdated materials have also been reported mainly for reference and are marked as 
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Nevertheless, since documentation update is not complete yet, it is not guaranteed that all outdated pages are marked so.
Warning
The following tools are deprecated and will be removed in cWB 6.4.7.0:
FrDisplay (see Data Display): graphical data display tool based on Baudline
ANN (see Artificial Neural Networks with cWB): artificial neural network support (replaced by XGBoost with cWB)
Bico: bicoherence analysis tool
WaveGraph: a wavelet graphs utility to search for CBC signals
Attention
The cWB has been developed for Linux operating systems. It is configured to work on Linux distributions such as:
Rocky Linux 8, 9
Debian GNU/Linux bullseye, bookworm, trixie
cWB can also be used with other Linux distributions or with OSX on x86_64 (with some minor modifications) but it is not officially supported. OSX on ARM (Apple Silicon) is not supported.
Getting Started
Pipeline
Tools
Miscellaneous topics
Documentation