{
  "abstract": "We perform a comprehensive investigation of particle acceleration at the termination shocks of massive star clusters, with a particular focus on the Cygnus region. Building on the particle-acceleration model for cluster-driven winds, we use recently available spectral and spatial measurements of ultra-high-energy $γ$-rays from the Cygnus bubble to place stringent constraints on the physical conditions in the acceleration zone. By jointly modelling the observed $γ$-ray spectrum and spatial morphology, we derive quantitative limits on key parameters such as the maximum particle energy, acceleration efficiency, magnetic-field strength, and shock geometry, and assess their consistency with a hadronic origin of the emission. These data allow us to refine the target gas profiles within and around the bubble, thereby improving estimates of the expected hadronic $γ$-ray and neutrino fluxes. Using this revised gas model, we compute the neutrino emission associated with the Cygnus bubble and evaluate the statistical significance of a potential neutrino signal from this region for current and near-future high-energy neutrino observatories. Taken together, these results provide a more precise characterisation of the particle-acceleration environment at cluster termination shocks and help clarify the role of young massive star clusters as potential Galactic PeVatrons and contributors to the observed diffuse high-energy neutrino and $γ$-ray emissions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2611.03248",
  "author_total": 6,
  "authors": [
    {
      "name": "Abhijit Roy"
    },
    {
      "name": "Giovanni Morlino"
    },
    {
      "name": "C Rishi"
    },
    {
      "name": "Jagdish C. Joshi"
    },
    {
      "name": "Soebur Razzaque"
    },
    {
      "name": "Neelam Panwar"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/94sg74hrx1nyp.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2611.03248",
  "fulltext_url": null,
  "id": "94sg74hrx1nyp",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2611.03248",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "hep-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2611.03248",
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/94sg74hrx1nyp.ris",
  "sources": [
    {
      "first_seen": "2026-11-03T12:21:04Z",
      "native_id": "2611.03248",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2611.03248"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:hep-ph",
      "subfield": "high-energy"
    }
  ],
  "title": "A Multi-messenger Study of the Cygnus bubble",
  "title_text": "A Multi-messenger Study of the Cygnus bubble",
  "type": "preprint",
  "updated_at": "2026-11-05T15:20:21Z",
  "url": "https://research.draconitic.com/paper/94sg74hrx1nyp",
  "venue": "arXiv",
  "versions": []
}