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Observation of the microquasar LS 5039 with H.E.S.S.

Abstract : The High Energy Stereoscopic System (H.E.S.S) is an array of four imaging atmospheric-Cherenkov telescopes located in the Khomas Highlands of Namibia. The microquasar LS 5039 was serendipously detected by the instrument during the scan of the inner galactic plane in 2004. Deeper observation were carried out in 2005, and brought a clear evidence for TeV emission variability. This is after PSRB 1259-63 the second VHE gamma-rays variable galactic source discovered. We will present detailed studies of the source variability (flux and spectral shape) compared to other wavelengthes and shortly review the implications for the existing emission models.
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Submitted on : Saturday, March 10, 2007 - 8:14:59 AM
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M. de Naurois. Observation of the microquasar LS 5039 with H.E.S.S.. SF2A-2006: 26ème Semaine de l'Astrophysique Française, Jun 2006, Paris, France. pp.125-128. ⟨in2p3-00135982⟩



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