{
  "id": "2112.06878",
  "version": "v2",
  "published": "2021-12-13T18:35:45.000Z",
  "updated": "2022-09-13T13:58:45.000Z",
  "title": "4-OGC: Catalog of gravitational waves from compact-binary mergers",
  "authors": [
    "Alexander H. Nitz",
    "Sumit Kumar",
    "Yi-Fan Wang",
    "Shilpa Kastha",
    "Shichao Wu",
    "Marlin Schäfer",
    "Rahul Dhurkunde",
    "Collin D. Capano"
  ],
  "comment": "v2, 22 pages, 7 figures, 5 tables, data release at https://github.com/gwastro/4-ogc, submitted to ApJ, comments welcome",
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "We present the fourth Open Gravitational-wave Catalog (4-OGC) of binary neutron star (BNS), binary black hole (BBH) and neutron star-black hole (NSBH) mergers. The catalog includes observations from 2015-2020 covering the first through third observing runs (O1, O2, O3a, O3b) of Advanced LIGO and Advanced Virgo. The updated catalog includes 7 BBH mergers which were not previously reported with high significance during O3b for a total of 94 observations: 90 BBHs, 2 NSBHs, and 2 BNSs. The most confident new detection, GW200318_191337, has component masses $49.1^{+16.4}_{-12.0}\\textrm{M}_\\odot$ and $31.6^{+12.0}_{-11.6}\\textrm{M}_\\odot$; its redshift of $0.84^{+0.4}_{-0.35}$ ($90\\%$ credible interval) may make it the most distant merger so far. We estimate the merger rate of BBH sources, assuming a powerlaw mass distribution containing an additive Gaussian peak, to be $16.5_{-6.2}^{+10.4} (25.0_{-8.0}^{+12.6})$ Gpc$^{-3}$ yr$^{-1}$ at a redshift of $z=0$ ($0.2$). For BNS and NSBH sources, we estimate a merger rate of $200^{+309}_{-148}$ Gpc$^{-3}$ yr$^{-1}$ and $19^{+30}_{-14}$ Gpc$^{-3}$ yr$^{-1}$, respectively, assuming the known sources are representative of the total population. We provide reference parameter estimates for each of these sources using an up-to-date model accounting for instrumental calibration uncertainty. The corresponding data release also includes our full set of sub-threshold candidates.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2022-09-13T13:58:45.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "compact-binary mergers",
      "gravitational waves",
      "fourth open gravitational-wave catalog",
      "merger rate",
      "neutron star-black hole"
    ],
    "tags": [
      "github project"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}