{
  "abstract": "We report the discovery and timing of PSR J2147-3604, a fully recycled millisecond pulsar with a spin period of 3.2 ms, discovered in a reprocessing of the 350-MHz Green Bank North Celestial Cap (GBNCC) survey and later serendipitously confirmed by the MeerKAT TRAPUM UHF survey of Fermi-LAT unidentified sources. We followed up this pulsar with Murriyang/Parkes radio telescope and obtained a phase-connected timing solution spanning one year, revealing a 4.5-day binary orbit with very low eccentricity (e ~ 1.9 x $10^{-5}$). A follow-up search in LAT data revealed gamma-ray pulsations, allowing for a joint radio and gamma-ray timing analysis. Assuming a neutron-star mass of 1.5 Msun, the inferred median companion mass (~0.2 Msun) is consistent with a helium white dwarf. The pulsar has a low dispersion measure of 17.0 pc cm$^{-3}$ and shows strong scintillation, leading to it being detected in ~72% of the observations covering the 704-1174 MHz band with Murriyang. The pulsar has a narrow duty cycle of ~6.5%, which leads to individual time of arrival (ToA) uncertainties of ~4.5 us for a 10 min integration with MeerKAT, suggesting this pulsar is well suited for inclusion in PTA experiments.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.17247",
  "author_total": 20,
  "authors": [
    {
      "name": "L. Vleeschower"
    },
    {
      "name": "R. Sengar"
    },
    {
      "name": "L. Nieder"
    },
    {
      "name": "C. J. Clark"
    },
    {
      "name": "D. L. Kaplan"
    },
    {
      "name": "A. Anumarlapudi"
    },
    {
      "name": "R. Girgaonkar"
    },
    {
      "name": "T. Thongmeearkom"
    },
    {
      "name": "G. Y. Agazie"
    },
    {
      "name": "M. Bailes"
    },
    {
      "name": "E. D. Barr"
    },
    {
      "name": "R. P. Breton"
    },
    {
      "name": "M. E. Decesar"
    },
    {
      "name": "T. Dolch"
    },
    {
      "name": "M. Kramer"
    },
    {
      "name": "R. S. Lynch"
    },
    {
      "name": "E. Parent"
    },
    {
      "name": "S. M. Ransom"
    },
    {
      "name": "B. W. Stappers"
    },
    {
      "name": "J. van Leeuwen"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8qs6kp1kb28r4.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.17247",
  "fulltext_url": null,
  "id": "8qs6kp1kb28r4",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.17247",
  "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"
    ],
    [
      "openalex",
      "3103|Pulsars and Gravitational Waves Research"
    ]
  ],
  "openalex": "W7221768464",
  "pdf_url": "https://arxiv.org/pdf/2610.17247",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-12",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8qs6kp1kb28r4.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:06Z",
      "native_id": "2610.17247",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.17247"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    }
  ],
  "title": "Radio and Gamma-Ray Timing of a Newly Discovered Millisecond Pulsar",
  "title_text": "Radio and Gamma-Ray Timing of a Newly Discovered Millisecond Pulsar",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:06Z",
  "url": "https://research.draconitic.com/paper/8qs6kp1kb28r4",
  "venue": "arXiv",
  "versions": []
}