{
  "id": "1603.05977",
  "version": "v1",
  "published": "2016-03-18T20:00:02.000Z",
  "updated": "2016-03-18T20:00:02.000Z",
  "title": "New H.E.S.S. diffuse emission from the Galactic center: a combination of heavy dark matter and millisecond pulsars?",
  "authors": [
    "Thomas Lacroix",
    "Joseph Silk",
    "Emmanuel Moulin",
    "Celine Boehm"
  ],
  "comment": "5 pages, 3 figures",
  "categories": [
    "astro-ph.HE",
    "astro-ph.CO",
    "astro-ph.GA",
    "hep-ph"
  ],
  "abstract": "In this letter, we show that the newly detected H.E.S.S. gamma-ray diffuse emission from the Galactic center below 0.45 deg can be accounted for by inverse Compton emission from millisecond pulsars and heavy (~ 100 TeV) dark matter annihilating to electrons or muons with a thermal or sub-thermal cross-section, provided that the dark matter density profile features a supermassive black hole-induced spike on sub-pc scales. We discuss the impact of the interstellar radiation field, magnetic field and diffusion set-up on the spectral and spatial morphology of the resulting emission. For well-motivated parameters, we show that the DM-induced emission reproduces the spatial morphology of the H.E.S.S. signal above ~ 10 TeV, while we obtain a more extended component from pulsars at lower energies, which could be used as a prediction for future H.E.S.S. observations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-03-18T20:00:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "heavy dark matter",
      "galactic center",
      "diffuse emission",
      "millisecond pulsars",
      "spatial morphology"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2016arXiv160305977L",
      "inspire": 1430847
    }
  }
}