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

Research output: Contribution to journalArticlepeer-review

Abstract

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
Volume117
DOIs
StatePublished - Jan 2020

Bibliographical note

Funding Information:
This research is supported by grants from the U.S. Department of Energy Office of Science, the U.S. National Science Foundation and the Smithsonian Institution, and by NSERC in Canada. This research used resources provided by the Open Science Grid, which is supported by the National Science Foundation and the U.S. Department of Energy’s Office of Science, and resources of the National Energy Research Scientific Computing Center (NERSC), a U.S. Department of Energy Office of Science User Facility operated under Contract No. DE-AC02-05CH11231. We acknowledge the excellent work of the technical support staff at the Fred Lawrence Whipple Observatory and at the collaborating institutions in the construction and operation of the instrument.

Keywords

  • Binaries: close
  • Gamma rays: general
  • ISM: individual objects: HESS J1825-137
  • Stars: individual: LS 5039

Fingerprint Dive into the research topics of 'VERITAS Detection of LS 5039 and HESS J1825-137'. Together they form a unique fingerprint.

Cite this