Evidence for TeV gamma ray emission from TeV J2032+4130 in Whipple archival data

Abstract

A reanalysis of data taken on the Cygnus region in 1989-90 using the Whipple Observatory atmospheric Cherenkov imaging telescope confirms the existence of the TeV J2032+4130 source reported by the Crimean Astrophysical Observatory and published by the HEGRA Collaboration. The significance at the a priori HEGRA position is 3.3sigma. The peak signal was found at RA=20hr32min, Dec=+41deg33min. This is 0.6deg north of Cygnus X-3 which was the original target of the observations. The flux level (12% of the level of the Crab Nebula) is intermediate between the two later observations and suggests that the TeV source is variable.

5 pages, 2 figures, accepted for publication in Astronomy & Astrophysics

Cited by in corpus (13)

• HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon
• TeV gamma-rays and neutrinos from photo-disintegration of nuclei in Cygnus OB2
• Prospects for identifying the sources of the Galactic cosmic rays with IceCube
• Prospects for Detecting Galactic Sources of Cosmic Neutrinos with IceCube: An Update
• Observations of the Unidentified TeV Gamma-Ray Source TeV J2032+4130 with the Whipple Observatory 10 m Telescope
• XMM-Newton observations of the first unidentified TeV gamma-ray source TeV J2032+4130
• TeV J2032+4130: a not-so-dark Accelerator?
• Neutrinos from Cosmic Ray Accelerators in the Cygnus Region of the Galaxy
• Galactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide
• The Highest Energy Neutrinos
• Transient X-ray sources in the field of the Unidentified Gamma-Ray Source TeV J2032+4130 in Cygnus
• Gamma-rays from the binary system containing PSR J2032+4127 during its periastron passage
• Particle Acceleration in the Cygnus Superbubble