{
  "abstract": "The globular cluster $ω$ Cen has been suggested to have originated in the Gaia Sausage-Enceladus (GSE) merger event, possibly as its nuclear star cluster. However, the present-day orbits of $ω$ Cen and the GSE debris are very different. We investigate the scenario in which $ω$ Cen originated in the GSE and migrated to its current position due to perturbations from the Galactic bar. The [$α$/M] distributions of stars located between the GSE debris and $ω$ Cen in $(L_z,E)$ space tentatively support this scenario, but are not conclusive. We run simulations of the GSE debris and $ω$ Cen in a realistic Milky Way potential with a decelerating bar at various present-day pattern speeds. We find that $ω$ Cen can indeed be traced back to the phase space region occupied by the GSE debris. However, this would likely require a pattern speed of $Ω_\\mathrm{b}\\lesssim26$ km s$^{-1}$ kpc$^{-1}$, which is much lower than most recent estimates. We conclude that a GSE origin for $ω$ Cen is dynamically and chemically plausible, but only with a re-evaluation of the current consensus on the bar's pattern speed.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.12516",
  "author_total": 3,
  "authors": [
    {
      "name": "Adam M. Dillamore"
    },
    {
      "name": "Hanyuan Zhang"
    },
    {
      "name": "Vasily Belokurov"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/b2pqsded65pmk.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.12516",
  "fulltext_url": null,
  "id": "b2pqsded65pmk",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.12516",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.GA"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2606.12516",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-01",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/b2pqsded65pmk.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:00Z",
      "native_id": "2606.12516",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.12516"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Bar-induced migration of $ω$ Centauri away from Gaia Sausage-Enceladus",
  "title_text": "Bar-induced migration of ω Centauri away from Gaia Sausage-Enceladus",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:00Z",
  "url": "https://research.draconitic.com/paper/b2pqsded65pmk",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1449",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}