Evidence for TeV gamma ray emission from TeV J2032+4130 in Whipple archival data
Astrophysics
2007-05-23 v1
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.
Cite
@article{arxiv.astro-ph/0405513,
title = {Evidence for TeV gamma ray emission from TeV J2032+4130 in Whipple archival data},
author = {M. J. Lang and D. A. Carter-Lewis and D. J. Fegan and S. J. Fegan and A. M. Hillas and R. C. Lamb and M. Punch and P. T. Reynolds and T. C. Weekes},
journal= {arXiv preprint arXiv:astro-ph/0405513},
year = {2007}
}
Comments
5 pages, 2 figures, accepted for publication in Astronomy & Astrophysics