{
  "abstract": "Dense stellar environments such as globular clusters and young massive clusters produce both compact-object mergers detectable in gravitational waves and tidal disruption events observable electromagnetically. We investigate compact-object mergers, tidal disruption events, and micro-tidal disruption events ($μ$TDEs) in these environments using rapid Monte Carlo star-cluster simulations with the Rapster code, extended with a unified treatment of neutron-star (NS) and black-hole (BH) spin evolution under disk accretion across the NS-to-BH transition, as well as new dynamical channels for disruptions by single compact objects and by BH-BH binaries. Simulating $10^5$ clusters across ten model variations and two formation histories, we find a BH-BH merger-rate density peaking at $z\\approx2$-$3$ at several tens ${\\rm Gpc}^{-3}\\,{\\rm yr}^{-1}$, consistent with the local LVK rate, while the cumulative number of $μ$TDEs exceeds that of mergers by a factor of a few. Since we include only dynamically formed binaries, $\\approx90\\%$ of $μ$TDEs proceed through single compact-object-star encounters, and our rates are conservative lower limits. Prograde accretion during $μ$TDEs spins up compact objects, providing a purely dynamical, randomly oriented pathway for producing high-spin BHs, and can drive accretion-induced collapse of NSs to BHs that populate the lower mass gap.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.26878",
  "author_total": 4,
  "authors": [
    {
      "name": "Konstantinos Kritos"
    },
    {
      "name": "Francesco Iacovelli"
    },
    {
      "name": "Rosalba Perna"
    },
    {
      "name": "Emanuele Berti"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bftk68s1ayj0s.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.26878",
  "fulltext_url": null,
  "id": "bftk68s1ayj0s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.26878",
  "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"
    ],
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7214198592",
  "pdf_url": "https://arxiv.org/pdf/2609.26878",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/bftk68s1ayj0s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.26878",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.26878"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Compact Object Mergers and Micro-Tidal Disruption Events: A Multi-Messenger Probe of Dense Stellar Environments",
  "title_text": "Compact Object Mergers and Micro-Tidal Disruption Events: A Multi-Messenger Probe of Dense Stellar Environments",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/bftk68s1ayj0s",
  "venue": "arXiv",
  "versions": []
}