{
  "id": "1409.7365",
  "version": "v1",
  "published": "2014-09-25T18:56:41.000Z",
  "updated": "2014-09-25T18:56:41.000Z",
  "title": "On the core-halo distribution of dark matter in galaxies",
  "authors": [
    "Remo Ruffini",
    "Carlos Raúl Argüelles",
    "Jorge Armando Rueda"
  ],
  "comment": "5 pages, 5 figures. Submitted to PRL",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We investigate the distribution of dark matter in galaxies by solving the equations of equilibrium of a self-gravitating system of massive fermions (`inos') at selected temperatures and degeneracy parameters within general relativity. The most general solutions present, as a function of the radius, a segregation of three physical regimes: 1) an inner core of almost constant density governed by degenerate quantum statistics; 2) an intermediate region with a sharply decreasing density distribution followed by an extended plateau, implying quantum corrections; 3) a decreasing density distribution $\\rho\\propto r^{-2}$ leading to flat rotation curves fulfilling the classical Boltzmann statistics. The mass of the inos is determined as an eigenfunction of the mass of the inner quantum cores. We compare and contrast this mass value with the lower limit on the particle mass by Tremaine and Gunn (1979), and show that the latter is approached for the less degenerate quantum cores in agreement with the fixed halo observables. Consequences of this alternative approach to the massive core in SgrA* and to dwarf galaxies are outlined.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-09-25T18:56:41.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dark matter",
      "core-halo distribution",
      "decreasing density distribution",
      "degenerate quantum statistics",
      "flat rotation curves"
    ],
    "publication": {
      "doi": "10.1093/mnras/stv1016",
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2015,
      "month": "Jul",
      "volume": 451,
      "number": 1,
      "pages": 622
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1319031,
      "adsabs": "2015MNRAS.451..622R"
    }
  }
}