VERITAS Detection of LS 5039 and HESS J1825-137

A. U. Abeysekara, W. Benbow, R. Bird, R. Brose, J. L. Christiansen, A. J. Chromey, W. Cui, M. K. Daniel, A. Falcone, L. Fortson, D. Hanna, T. Hassan, O. Hervet, J. Holder, G. Hughes, T. B. Humensky, P. Kaaret, P. Kar, N. Kelley-Hoskins, M. KertzmanD. Kieda, M. Krause, M. J. Lang, G. Maier, P. Moriarty, D. Nieto, M. Nievas-Rosillo, R. A. Ong, D. Pandel, M. Pohl, R. R. Prado, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, I. Sadeh, M. Santander, G. H. Sembroski, A. Weinstein, P. Wilcox, D. A. Williams, T. J. Williamson

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With 8 h of observations, VERITAS confirms the detection of two very high energy gamma-ray sources. The gamma-ray binary LS 5039 is detected with a statistical significance of 8.8σ. The measured flux above 1 TeV is (2.5±0.4)×10−12cm−2s−1 near inferior conjunction and (7.8±2.8)×10−13cm−2s−1 near superior conjunction. The pulsar wind nebula HESS J1825-137 is detected with a statistical significance of 6.7σ and a measured flux above 1 TeV of (3.9±0.8)×10−12cm−2s−1.

Original languageEnglish (US)
Article number102403
JournalAstroparticle Physics
StatePublished - Jan 2020

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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