VHE Gamma Rays from PKS 2155-304
Astrophysics
2007-05-23 v1
Abstract
The X-ray selected BL Lac PKS 2155-304 has been observed using the University of Durham Mark 6 very high energy gamma ray telescope during 1998. We find no evidence for TeV emission during these recent observations when the X-ray flux was observed to be low. We have reconsidered our measurements made in 1997 November when PKS 2155-304 was in a bright X-ray state and extended X-ray and GeV gamma ray observations were made as part of a multiwavelength campaign. Comparisons are made of the VHE emission during this time with the available data from other wavelengths.
Keywords
Cite
@article{arxiv.astro-ph/9906132,
title = {VHE Gamma Rays from PKS 2155-304},
author = {P. M. Chadwick and K. Lyons and T. J. L. McComb and K. J. Orford and J. L. Osborne and S. M. Rayner and S. E. Shaw and K. E. Turver},
journal= {arXiv preprint arXiv:astro-ph/9906132},
year = {2007}
}
Comments
4 pages, 3 figures, to appear in the Proceedings of 26th International Cosmic Ray Conference (Salt Lake City, 1999)