4-OGC: Catalog of Gravitational Waves from Compact Binary Mergers

Abstract We present the fourth Open Gravitational-wave Catalog (4-OGC) of binary neutron star (BNS), black hole (BBH), and star–black (NSBH) mergers. The catalog includes observations from 2015 to 2020 covering first through third observing runs (O1, O2, O3a, O3b) Advanced LIGO Virgo. updated seven BBH mergers that were not previously reported with high significance during O3b for a total 94 observations: 90 BBHs, 2 NSBHs, BNSs. most confident new detection, GW200318_191337, has component masses 49.1 − 12.0 + 16.4 M ⊙ ${31.6}_{-11.6}^{+12.0}{M}_{\odot };$?> 31.6 11.6 ; its redshift ${0.84}_{-0.35}^{+0.4}$?> 0.84 0.35 0.4 (90% credible interval) may make it distant merger so far. estimate rate sources, assuming power-law mass distribution containing an additive Gaussian peak, be ${16.5}_{-6.2}^{+10.4}({25.0}_{-8.0}^{+12.6})$?> 16.5 6.2 10.4 ( 25.0 8.0 12.6 stretchy="false">) Gpc −3 yr −1 at z = 0 (0.2). For BNS NSBH we ${200}_{-148}^{+309}$?> 200 148 309 ${19}_{-14}^{+30}$?> 19 14 30 , respectively, known sources are representative population. provide reference parameter estimates each these using up-to-date model accounting instrumental calibration uncertainty. corresponding data release also our full set subthreshold candidates.