GWTC-1: Compact Binary Coalescences Observed by LIGO and Virgo During the First and Second Observing Runs

These pages are meant to complement the data and figures released within the GWTC-1 catalog with additional information produced with cWB. The events’ reconstruction with cWB is reported in the Coherent Event Display Gallery - Networks HL and HLV .


Comparison between un-modeled and modeled waveform reconstructions: cWB vs LALInference

cWB is a wavelet-based burst method while LALInference is a parameter estimation method that uses the best available binary coalescence models. The comparisons shown here are performed between the cWB wavelet-based reconstruction and the LALInference results on the models listed in the GWTC-1 catalog.

Summary plots


cWB and LALInference(LI) comparisons on maximum likelihood reconstructed waveforms

Summary plots Content
Max likelihood whitened waveforms in time-domain
Max likelihood whitened waveform residuals in time-domain
90% skymaps (cWB vs CBC-PE skymaps)
cWB 90% confidence intervals (time-domain)
cWB 90% confidence intervals (frequency-domain)
cWB 90% confidence intervals (time envelope)
Strain noise amplitude spectral density

GW events

GW events reconstructed with standard settings are shown with a green badge, while those reconstructed with ad-hoc settings (e.g. ad-hoc production thresholds) are shown with an orange badge.

O1 (12 September 2015 - 19 January 2016) O2 (30 November 2016 - 25 August 2017)