{
  "abstract": "One of the key limitations of large-scale structure surveys of the current and future generation, such as Euclid, LSST-Rubin or Roman, is the influence of feedback processes on the distribution of matter in the Universe. This effect, called baryonic feedback, modifies the matter power spectrum on non-linear scales much stronger than any cosmological parameter of interest. Constraining these modifications is therefore key to unlocking the full potential of the upcoming surveys, and we propose to do so with the help of Fast Radio Bursts (FRBs). FRBs are short, astrophysical radio transients of extragalactic origin. Their burst signal is dispersed by the free electrons in the large-scale structure, leading to delayed arrival times at different frequencies characterised by the dispersion measure (DM). Since the dispersion measure is sensitive to the integrated line-of-sight electron density, it is a direct probe of the baryonic content of the Universe. We investigate how FRBs can break the degeneracies between cosmological and feedback parameters by correlating the observed Dispersion Measure with the weak gravitational lensing signal of a Euclid-like survey. In particular, we use a simple one-parameter model controlling baryonic feedback, but we expect similar findings for more complex models. Within this model, we find that ∼ 5 × 10 4 FRBs are sufficient to constrain the baryonic feedback significantly better than cosmic shear alone, tightening the constraints considerably (roughly by a factor of five). We also expect a 1.5-fold improvement in the sum of neutrino masses.",
  "abstract_shown": true,
  "affiliations": [
    "Argelander-Institut für Astronomie, Universität Bonn, Auf dem Hügel 71, D-53121 Bonn,",
    "Ruhr University Bochum, Faculty of Physics and Astronomy, Astronomical Institute (AIRUB), German Centre for Cosmological Lensing, 44780 Bochum,",
    "Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden,",
    "Excellence Cluster ORIGINS, Boltzmannstraße 2, D-85748 Garching,",
    "Universitäts-Sternwarte, Fakultät für Physik, Ludwig-Maximilians Universität München, Scheinerstraße 1, D-81679 München,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Robert Reischke",
      "orcid": "0000-0001-5404-8753"
    },
    {
      "affs": [
        2,
        1
      ],
      "name": "Dennis Neumann",
      "orcid": "0009-0006-3926-6756"
    },
    {
      "affs": [
        1
      ],
      "name": "Klara Bertmann"
    },
    {
      "affs": [
        3,
        4
      ],
      "name": "Steffen Hagstotz",
      "orcid": "0000-0002-7044-3793"
    },
    {
      "affs": [
        1
      ],
      "name": "Hendrik Hildebrandt",
      "orcid": "0000-0002-9814-3338"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2w6mnncwmp8k2.bib",
  "cited_by": 13,
  "doi": "10.1088/1475-7516/2026/06/006",
  "fulltext_url": null,
  "id": "2w6mnncwmp8k2",
  "issns": [
    "1475-7508",
    "1475-7516"
  ],
  "landing_url": "https://doi.org/10.1088/1475-7516/2026/06/006",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W4386876056",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-06-01",
  "publisher": "Institute of Physics",
  "ris": "https://research.draconitic.com/paper/2w6mnncwmp8k2.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:18Z",
      "native_id": "W4386876056",
      "source": "openalex",
      "url": "https://doi.org/10.1088/1475-7516/2026/06/006"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Cosmology and Gravitation Theories",
      "subfield": "cosmology"
    }
  ],
  "title": "Calibrating baryonic feedback with weak lensing and fast radio bursts",
  "title_text": "Calibrating baryonic feedback with weak lensing and fast radio bursts",
  "type": "peer-reviewed",
  "updated_at": "2026-11-06T13:20:23Z",
  "url": "https://research.draconitic.com/paper/2w6mnncwmp8k2",
  "venue": "Journal of Cosmology and Astroparticle Physics",
  "versions": []
}