{
  "abstract": "Axion-like particles (ALPs) provide a compelling avenue for exploring physics beyond the Standard Model. In astrophysical magnetized plasmas, an ALP–photon coupling g aγ induces energy-dependent oscillations in the photon survival probability that imprint modulations on emission spectra. X-ray observations of bright spectrally smooth sources can provide particularly sensitive probes of ultralight ALPs with masses m a ≲ 10 ⁻¹¹ eV due to long propagation distances, strong magnetic fields, and high photon statistics. We present a comprehensive forecast of ALP–photon conversion in three representative systems: (i) background active galactic nuclei (AGNs) observed through foreground intracluster magnetic fields, (ii) central AGNs within their host cluster halos, and (iii) Galactic X-ray binaries viewed through the Milky Way field. Using detailed simulations, we assess the prospective sensitivity of high-resolution X-ray missions including XRISM, Athena, and Arcus. For typical magnetic field configurations, a 320 ks XRISM observation or an 8 ks Athena observation of the Perseus Cluster AGN NGC 1275 can reach down to g aγ ∼ 5 × 10 ⁻¹³ GeV ⁻¹ at m a ≲ 10 ⁻¹² eV, surpassing the current best limit. We quantify the impact of magnetic field modeling, photon statistics, and spectral binning strategies. Our results demonstrate the scientific potential of future X-ray observatories to probe photon–ALP coupling in previously inaccessible parameter space, offering a powerful window into physics beyond the Standard Model.",
  "abstract_shown": true,
  "affiliations": [
    "Chinese Academy of Sciences (NAOC)",
    "International Center for Quantum-field Measurement Systems for Studies of the Universe and Particles (QUP, WPI)",
    "University of Chinese Academy of Sciences",
    "Tsinghua University",
    "Institute of Particle and Nuclear Studies (IPNS)",
    "Graduate University for Advanced Studies (SOKENDAI)",
    "The University of Tokyo Institutes for Advanced Study",
    "National Astronomical Observatory of Japan"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 4,
  "authors": [
    {
      "affs": [
        0,
        1,
        2
      ],
      "name": "Yu Zhou",
      "orcid": "0000-0002-5793-554X"
    },
    {
      "affs": [
        3
      ],
      "name": "Jiejia Liu"
    },
    {
      "affs": [
        1,
        4,
        5,
        6
      ],
      "name": "Volodymyr Takhistov"
    },
    {
      "affs": [
        1,
        7
      ],
      "name": "Kazuhisa Mitsuda",
      "orcid": "0000-0002-7107-8468"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/axc5r0vp9y97y.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/ae9f5d",
  "fulltext_url": null,
  "id": "axc5r0vp9y97y",
  "issns": [
    "0004-637X",
    "1538-4357"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/ae9f5d",
  "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": "W7214885182",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/ae9f5d/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-30",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/axc5r0vp9y97y.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:11Z",
      "native_id": "10.3847/1538-4357/ae9f5d",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/1538-4357/ae9f5d"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Dark Matter and Cosmic Phenomena",
      "subfield": "high-energy"
    }
  ],
  "title": "Probing Axion–Photon Mixing with High-resolution X-Ray Spectroscopy",
  "title_text": "Probing Axion–Photon Mixing with High-resolution X-Ray Spectroscopy",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:11Z",
  "url": "https://research.draconitic.com/paper/axc5r0vp9y97y",
  "venue": "The Astrophysical Journal",
  "versions": []
}