{
  "abstract": "This work presents the first investigation of the impact of seasonal variations in seismic noise on the low-frequency performance of the Einstein Telescope (ET) at the Sardinia candidate site, focusing on their effect on compact binary coalescence signals. Using seismic data collected between 2022 and 2025 from a deep borehole, we characterize the seasonal variability of the seismic noise and identify the months of July and December as representative best- and worst-case conditions. The measured seismic spectra are used to estimate the Newtonian noise contribution in the 2--10 Hz frequency range and to derive corresponding modifications to the ET design sensitivity. These sensitivity curves are then used in simulations of binary neutron star and intermediate-mass black hole signals in the triangular ET configuration to quantify the resulting changes in signal-to-noise ratio. We find that median seasonal conditions produce only minor changes in the expected SNR, with deviations from the design case typically below 2$\\%$. Larger effects are found for the upper tail of the December noise distribution, where the average SNR loss reaches approximately 20--25$\\%$. These results indicate that seasonal seismic variability at the Sardinia candidate site has a limited impact on the low-frequency performance of ET under typical conditions.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2605.18135",
  "author_total": 17,
  "authors": [
    {
      "name": "Matteo Di Giovanni"
    },
    {
      "name": "Davide Rozza"
    },
    {
      "name": "Giovanni Diaferia"
    },
    {
      "name": "Andrea Contu"
    },
    {
      "name": "Rosario De Rosa"
    },
    {
      "name": "Carlo Giunchi"
    },
    {
      "name": "Luca Naticchioni"
    },
    {
      "name": "Marco Olivieri"
    },
    {
      "name": "Annalisa Allocca"
    },
    {
      "name": "Enrico Calloni"
    },
    {
      "name": "Giovanni Luca Cardello"
    },
    {
      "name": "Luciano Errico"
    },
    {
      "name": "Giovanni Losurdo"
    },
    {
      "name": "Irene Molinari"
    },
    {
      "name": "Lucia Trozzo"
    },
    {
      "name": "Alessandro Cardini"
    },
    {
      "name": "Domenico D'Urso"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/a6bd23rksdy69.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.18135",
  "fulltext_url": null,
  "id": "a6bd23rksdy69",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.18135",
  "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.IM"
    ],
    [
      "arxiv",
      "gr-qc"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7161732657",
  "pdf_url": "https://arxiv.org/pdf/2605.18135",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/a6bd23rksdy69.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:19:48Z",
      "native_id": "2605.18135",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.18135"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    }
  ],
  "title": "The impact of seasonality over the sensitivity of Einstein Telescope and the SNR of CBC signals at the Sardinia candidate site",
  "title_text": "The impact of seasonality over the sensitivity of Einstein Telescope and the SNR of CBC signals at the Sardinia candidate site",
  "type": "preprint",
  "updated_at": "2026-10-30T12:19:48Z",
  "url": "https://research.draconitic.com/paper/a6bd23rksdy69",
  "venue": "arXiv",
  "versions": []
}