{
  "abstract": "We study the effect of fuzzy dark matter (FDM) on the multiscale morphology of simulated redshifted 21 cm maps during Cosmic Dawn and the Epoch of Reionization. Using FDM-modified 21cmFAST light cones, we apply the two-dimensional wavelet scattering transform (WST) to matched 2 MHz map products. The first-order coefficients S ₁ ( j ) summarize wavelet-band amplitudes, while the normalized second-order ratio R = S ₂ / S ₁ ( j ₁ ) measures ordered cross-scale modulation. FDM shifts and reshapes both summaries through delayed halo and source formation. We compare a two-dimensional power spectrum (PS), WST, and their combination on the same transferred and noisy maps. In this controlled local Fisher analysis, PS+WST reduces the marginalized errors on the FDM mass, effective X-ray emissivity normalization, and ionizing efficiency by approximately a factor of 1.8 relative to the matched two-dimensional PS baseline, although the dominant mass-heating degeneracy remains. An idealized three-wedge test shows that R is less reshaped at the coefficient level than S ₁ . The covariance includes thermal noise conditional on one fiducial light cone but not cosmic variance or foreground residuals; the results are, therefore, relative information comparisons, not survey forecasts or a demonstration of superiority over a full three-dimensional PS analysis.",
  "abstract_shown": true,
  "affiliations": [
    "Yunnan University",
    "Nagoya University",
    "School of Physical Science and Technology",
    "Beijing Normal University"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Hayato Shimabukuro",
      "orcid": "0000-0003-4850-0656"
    },
    {
      "affs": [
        2,
        3
      ],
      "name": "Shihang Liu"
    },
    {
      "affs": [
        2
      ],
      "name": "Bohua Li",
      "orcid": "0000-0002-3600-0358"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/291yfzg9qqewb.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea4a6",
  "fulltext_url": null,
  "id": "291yfzg9qqewb",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea4a6",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3106|Dark Matter and Cosmic Phenomena"
    ]
  ],
  "openalex": "W4416936445",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea4a6/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-06",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/291yfzg9qqewb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:11Z",
      "native_id": "10.3847/1538-4357/aea4a6",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea4a6"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Dark Matter and Cosmic Phenomena",
      "subfield": "high-energy"
    }
  ],
  "title": "Wavelet-scattering Signatures of Fuzzy Dark Matter in Simulated 21 cm Brightness–Temperature Maps",
  "title_text": "Wavelet-scattering Signatures of Fuzzy Dark Matter in Simulated 21 cm Brightness–Temperature Maps",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:11Z",
  "url": "https://research.draconitic.com/paper/291yfzg9qqewb",
  "venue": "The Astrophysical Journal",
  "versions": []
}