{
  "key": "system-gaia-bhs",
  "name": "Gaia DR3 black holes",
  "type": "system",
  "version": 2,
  "mingsversion": 3060501,
  "description": "This dataset contains the systems of three black holes discovered by Gaia until DR3 (named BH1, BH2, and BH3).\nGaia BH1 is the first dormant black hole candidate. The system contains a slowly rotating G dwarf of 0.92 solar masses orbits around a dark object of 9.62+-0.18 solar masses, which is very likely a BH. The orbital period of the BH is 185.6 days.\nGaia BH2 is in a system with a 1 solar mass red giant plus a dark companion with mass 2.89+-0.3 solar masses, that is very likely a BH. The orbital period of BH2 is 1277 days.\nGaia BH3 is a system which includes the BH3 star and the 33 solar mass dormant black hole. The system sits at about 590 pc (1926 light years) from us, in a halo orbit around the Milky Way. It is the most massive stellar black hole found to date in our Galaxy. The dormant black hole was found in the preliminary Gaia DR4 astrometry. A 0.76+-0.05 solar mass very metal-poor giant plus a dark companion with mass 32.70+-1.46 solar masses, that is very likely a BH. The orbital period is 4253 days. Paper: Discovery of a dormant 33 solar-masses black hole in pre-release Gaia astrometry, Gaia Collaboration, et al., 2024.",
  "releasenotes": "- First version of this dataset incorporating all three black holes of Gaia DR3.\n- Fix descriptor files referencing old directory structure.",
  "links": [
    "https://academic.oup.com//article/521/3/4323/7093135",
    "https://academic.oup.com/mnras/article/521/3/4323/7093135",
    "https://www.esa.int/Science_Exploration/Space_Science/Gaia/Sleeping_giant_surprises_Gaia_scientists"
  ],
  "size": 393999,
  "nobjects": 6,
  "creator": "Toni Sagristà",
  "credits": [
    "ESA/Gaia/DPAC"
  ],
  "check": "$data/system-gaia-bhs/dataset.json",
  "files": [
    "$data/system-gaia-bhs/"
  ],
  "data": [
    {
      "loader": "gaia.cu9.ari.gaiaorbit.data.JsonLoader",
      "files": [
        "$data/system-gaia-bhs/gaia-BH1-system.json",
        "$data/system-gaia-bhs/gaia-BH2-system.json",
        "$data/system-gaia-bhs/gaia-BH3-system.json"
      ]
    }
  ]
}