{
  "id": "2106.00222",
  "version": "v1",
  "published": "2021-06-01T04:26:34.000Z",
  "updated": "2021-06-01T04:26:34.000Z",
  "title": "Millisecond Pulsars from Accretion Induced Collapse naturally explain the Galactic Center Gamma-ray Excess",
  "authors": [
    "Anuj Gautam",
    "Roland M. Crocker",
    "Lilia Ferrario",
    "Ashley J. Ruiter",
    "Harrison Ploeg",
    "Chris Gordon",
    "Oscar Macias"
  ],
  "comment": "5 pages, 5 figures main text + 22 pages supplementary material. The authors invite constructive comments",
  "categories": [
    "astro-ph.HE",
    "hep-ph"
  ],
  "abstract": "Gamma-ray data from the Fermi-Large Area Telescope reveal an unexplained, apparently diffuse, signal from the Galactic bulge. The origin of this \"Galactic Center Excess\" (GCE) has been debated with proposed sources prominently including self-annihilating dark matter and a hitherto undetected population of millisecond pulsars (MSPs). We use a binary population synthesis forward model to demonstrate that an MSP population arising from the accretion induced collapse of O-Ne white dwarfs in Galactic bulge binaries can naturally explain the GCE. Synchrotron emission from MSP-launched cosmic ray electrons and positrons seems also to explain the mysterious \"haze\" of hard-spectrum, non-thermal microwave emission from the inner Galaxy detected in WMAP and Planck data.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-06-01T04:26:34.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "galactic center gamma-ray excess",
      "accretion induced collapse",
      "millisecond pulsars",
      "galactic bulge",
      "binary population synthesis forward model"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}