{
  "id": "2307.04680",
  "version": "v1",
  "published": "2023-07-10T16:34:27.000Z",
  "updated": "2023-07-10T16:34:27.000Z",
  "title": "Unveiling the Graviton Mass Bounds through Analysis of 2023 Pulsar Timing Array Datasets",
  "authors": [
    "Sai Wang",
    "Zhi-Chao Zhao"
  ],
  "comment": "8 pages, 4 figures",
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "Strong evidence for the Helling-Downs correlations have been reported by several pulsar timing array collaborations in middle 2023. In this work, we study the state-of-the-art graviton mass bounds by analyzing the observational data of overlap ruduction functions from NANOGrav 15-year data release and CPTA first data release. The data analysis places upper limits on the graviton mass at 95\\% confidence level, namely, $m_{g}\\lesssim0.43\\times10^{-23}\\mathrm{eV}$ for NANOGrav and $m_{g}\\lesssim0.57\\times10^{-23}\\mathrm{eV}$ for CPTA. In addition, we discuss implications of these results for scenarios of ultralight tensor dark matter.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-07-10T16:34:27.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "pulsar timing array datasets",
      "data analysis places upper limits",
      "state-of-the-art graviton mass bounds",
      "ultralight tensor dark matter"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}