{
  "abstract": "2PBC J0800.5$-$4306 (Swift J0800.7$-$4309; optical counterpart Gaia DR3 5533020382479508736) is a hard-X-ray-selected cataclysmic variable whose magnetic subtype had remained uncertain. We analyse \\textit{TESS} photometry from Sectors 88 and 89 and archival \\textit{XMM-Newton} timing data. The \\textit{TESS} data show signals at the orbital frequency $Ω$, its first harmonic $2Ω$, the white-dwarf spin frequency $ω$, and the spin--orbit beat frequency $ω-Ω$. We measure $P_{\\rm orb}=5.38540^{+0.00027}_{-0.00028}$ h and $P_{\\rm spin}=0.7015570^{+0.0000059}_{-0.0000062}$ h. The \\textit{XMM-Newton} EPIC-pn, MOS1, and MOS2 periodograms show broad peaks near the 2525.6-s (0.701557-h) optical spin period. Together with the previously published cataclysmic variable classification and Swift/BAT hard-X-ray detection, these timing results identify 2PBC J0800.5$-$4306 as an intermediate polar. We report the first published measurements of its orbital and white-dwarf spin periods, while SPOC difference-image diagnostics and pixel-level timing tests support that the measured \\textit{TESS} modulations are associated with the Gaia counterpart despite the crowded field.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.27351",
  "author_total": 6,
  "authors": [
    {
      "name": "Yabing Zhao"
    },
    {
      "name": "Chunhua Zhu"
    },
    {
      "name": "Sufen Guo"
    },
    {
      "name": "Guoliang Lü"
    },
    {
      "name": "Xizhen Lu"
    },
    {
      "name": "Xinyu Liu"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/ee8qwzqczj9fb.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.27351",
  "fulltext_url": null,
  "id": "ee8qwzqczj9fb",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.27351",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "astro-ph.SR"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.27351",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-23",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/ee8qwzqczj9fb.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:56Z",
      "native_id": "2609.27351",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.27351"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "Orbital and spin periods of the intermediate polar 2PBC J0800.5-4306",
  "title_text": "Orbital and spin periods of the intermediate polar 2PBC J0800.5-4306",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:56Z",
  "url": "https://research.draconitic.com/paper/ee8qwzqczj9fb",
  "venue": "arXiv",
  "versions": []
}