{
  "id": "1006.1628",
  "version": "v1",
  "published": "2010-06-08T18:03:25.000Z",
  "updated": "2010-06-08T18:03:25.000Z",
  "title": "Fermi-LAT Sensitivity to Dark Matter Annihilation in Via Lactea II Substructure",
  "authors": [
    "Brandon Anderson",
    "Michael Kuhlen",
    "Robert Johnson",
    "Piero Madau",
    "Juerg Diemand"
  ],
  "comment": "16 pages, 6 figures",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We present a study of the ability of the Fermi Gamma-ray Space Telescope to detect dark-matter annihilation signals from the Galactic subhalos predicted by the Via Lactea II N-body simulation. We implement an improved formalism for estimating the boost factor needed to account for the effect of dark-matter clumping on scales below the resolution of the simulation, and we incorporate a detailed Monte Carlo simulation of the response of the Fermi-LAT telescope, including a simulation of its all-sky observing mode integrated over a ten year mission. We find that for WIMP masses up to about 150 GeV in standard supersymmetric models with velocity-averaged cross section 3*10^-26 cm^3 s^-1, a few subhalos could be detectable with >5 standard deviations significance and would likely deviate significantly from the appearance of a point source.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-06-08T18:03:25.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dark matter annihilation",
      "fermi-lat sensitivity",
      "fermi gamma-ray space telescope",
      "detect dark-matter annihilation signals",
      "substructure"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/718/2/899",
      "journal": "The Astrophysical Journal",
      "year": 2010,
      "month": "Aug",
      "volume": 718,
      "number": 2,
      "pages": 899
    },
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 857564,
      "adsabs": "2010ApJ...718..899A"
    }
  }
}