Fermi-LAT detection of gamma-ray emission in the vicinity of the star forming regions W43 and Westerlund 2
| dc.contributor.author | FERRARA, E. | |
| dc.contributor.author | GRONDIN, M.H. | |
| hal.structure.identifier | Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG] | |
| dc.contributor.author | LEMOINE-GOUMARD, M. | |
| dc.contributor.author | MARTIN, P. | |
| dc.contributor.author | RENAUD, M. | |
| dc.date.conference | 2011-06-27 | |
| dc.description.abstractEn | Particle acceleration in massive star forming regions can proceed via a large variety of possible emission scenarios, including high-energy gamma-ray production in the colliding wind zone of the massive Wolf-Rayet binary (here WR 20a and WR121a), collective wind scenarios, diffusive shock acceleration at the boundaries of wind-blown bubbles in the stellar cluster, and outbreak phenomena from hot stellar winds into the interstellar medium. In view of the recent Fermi-LAT detection of HESS J1023-575 (in the vicinity of Westerlund 2), we examine another very high energy (VHE) gamma-ray source, HESS J1848-0145 (in the vicinity of W43), possibly associated with a massive star cluster. Considering data from other wavelengths, in particular X-rays and TeV gamma-rays, we examine the available evidence that the gamma-ray emission from Westerlund 2 and W43 could originate in particles accelerated by the above-mentioned mechanisms in massive star clusters. | |
| dc.language.iso | en | |
| dc.title.en | Fermi-LAT detection of gamma-ray emission in the vicinity of the star forming regions W43 and Westerlund 2 | |
| dc.type | Communication dans un congrès | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Phénomènes cosmiques de haute energie [astro-ph.HE] | |
| bordeaux.country | FR | |
| bordeaux.conference.city | Montpellier | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | in2p3-00608900 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | non | |
| hal.conference.end | 2011-07-01 | |
| hal.popular | non | |
| hal.audience | Non spécifiée | |
| hal.origin.link | https://hal.archives-ouvertes.fr//in2p3-00608900v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=FERRARA,%20E.&GRONDIN,%20M.H.&LEMOINE-GOUMARD,%20M.&MARTIN,%20P.&RENAUD,%20M.&rft.genre=unknown |
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