{
  "id": "0906.2637",
  "version": "v2",
  "published": "2009-06-15T09:24:11.000Z",
  "updated": "2009-07-13T12:15:07.000Z",
  "title": "H.E.S.S. observations of massive stellar clusters",
  "authors": [
    "Stefan Ohm",
    "Dieter Horns",
    "Olaf Reimer",
    "Jim Hinton",
    "Gavin Rowell",
    "Emma de Oña Wilhelmi",
    "Milton Virgilio Fernandes",
    "Fabio Acero",
    "Alexandre Marcowith"
  ],
  "comment": "Invited talk at HEPIMS Workshop (Jaen 2009); 10 pages, 4 figures, to appear in PASP",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "Stellar clusters are potential acceleration sites of very-high-energy (VHE, E > 100GeV) particles since they host supernova remnants (SNRs) and pulsar wind nebulae (PWNe). Additionally, in stellar clusters, particles can also be accelerated e.g. at the boundaries of wind-blown bubbles, in colliding wind zones in massive binary systems or in the framework of collective wind or wind/supernova(SN) ejecta scenarios. Motivated by the detection of VHE gamma-ray emission towards Westerlund 2 and assuming similar particle acceleration mechanisms at work, Westerlund 1 is an even more promising target for VHE gamma-ray observations given that massive star content and distance are more favorable for detectable VHE gamma-ray emission compared to Westerlund 2. Here, H.E.S.S. observations of massive stellar clusters in general with special emphasis on the most massive stellar cluster in the galaxy, Westerlund 1 are summarized.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2009-07-13T12:15:07.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "massive stellar cluster",
      "vhe gamma-ray emission",
      "observations",
      "westerlund",
      "assuming similar particle acceleration mechanisms"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 823165,
      "adsabs": "2010ASPC..422..265O"
    }
  }
}