{
  "abstract": "The geometry of the Einstein Telescope, the proposed next-generation European gravitational-wave observatory, is yet to be finalized. Two competing designs are under consideration: a nested triangular configuration (ET-Δ) and two separated L-shaped detectors (ET-2L). Extensive prior comparisons of ET designs established the scientific landscape using the Fisher-information-matrix formalism and identified that duty-cycle-induced single-detector operation is precisely the regime where this approximation becomes less reliable, underscoring the need for a refined, principled treatment of the duty cycle. In this manuscript, we build on that foundation by revisiting the comparison with full Bayesian parameter estimation of gravitational-wave signals from binary black-hole mergers, projected onto a simulated Einstein Telescope that incorporates a refined duty cycle modelled via continuous-time Markov chains and testing different detector maintenance strategies. We find that the redundancy inherent in the ET-Δ design enables it to maintain at least two operational detectors for the majority of the observing time, whereas the ET-2L configuration is often limited to a single detector. Crucially, we show that, during partial network operation, ET-Δ often outperforms ET-2L, and that the increased multi-detector uptime translates into tighter constraints on the luminosity distance and source-frame component masses. Notably, this remains true even when gravitational-wave events have a lower signal-to-noise ratio in ET-Δ than in ET-2L.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.19201",
  "author_total": 16,
  "authors": [
    {
      "name": "Luca Negri"
    },
    {
      "name": "Thomas C. K. Ng"
    },
    {
      "name": "Thibeau Wouters"
    },
    {
      "name": "Tim J. Kuhlbusch"
    },
    {
      "name": "Harsh Narola"
    },
    {
      "name": "Robin Chan"
    },
    {
      "name": "Kailib Ryan Doney"
    },
    {
      "name": "Francesco Cireddu"
    },
    {
      "name": "Isaac C. F. Wong"
    },
    {
      "name": "Fabian Gittins"
    },
    {
      "name": "Peter T. H. Pang"
    },
    {
      "name": "Anuradha Samajdar"
    },
    {
      "name": "Achim Stahl"
    },
    {
      "name": "Justin Janquart"
    },
    {
      "name": "Chris Van Den Broeck"
    },
    {
      "name": "Tjonnie G. F. Li"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8k7nhvb4xgg3d.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.19201",
  "fulltext_url": null,
  "id": "8k7nhvb4xgg3d",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.19201",
  "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",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7165121659",
  "pdf_url": "https://arxiv.org/pdf/2606.19201",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-14",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8k7nhvb4xgg3d.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:31Z",
      "native_id": "2606.19201",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.19201"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "Impact of the Einstein Telescope's duty cycle on the estimation of binary black holes parameters",
  "title_text": "Impact of the Einstein Telescope's duty cycle on the estimation of binary black holes parameters",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:31Z",
  "url": "https://research.draconitic.com/paper/8k7nhvb4xgg3d",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1103/1zg7-sd8v",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}