{"paper":{"title":"The FAST Discovery of a Millisecond Pulsar M15O (PSR J2129+1210O) Hidden in the Harmonics of M15A (PSR J2129+1210A)","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Baoda Li, Dejiang Yin, Lei Qian, Liyun Zhang, Yaowei Li, Yinfeng Dai, Yujie Lian, Yuxiao Wu, Zhichen Pan","submitted_at":"2025-04-23T16:46:20Z","abstract_excerpt":"We report the discovery of an isolated millisecond pulsar M15O (J2129+1210O) from the globular cluster M15 (NGC 7078) with a period of $\\sim$11.06686 ms and a dispersion measure of $\\sim$67.44 cm$^{-3}$ pc. Its spin period is so close to the 10th harmonic of the bright pulsar M15A ($\\sim$11.06647 ms) that it was missed in previous pulsar search. We suggest adding the spectrum in the pulsar candidate diagnostic plot to identify new signals near the harmonics. M15O has the first spin frequency derivative and the second spin frequency derivative,being 1.79191(5) $\\times$ $10^{-14}$ Hz $s^{-1}$ an"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2504.16872","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2504.16872/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}