TeV emission from PKS 2155-304.

Authors :: Chadwick, P. M.
Lyons, K.
McComb, T. J. L.
Orford, K. J.
Osborne, J. L.
Rayner, S. M.
Shaw, S. E.
Turver, K. E.
Source :: AIP Conference Proceedings; 2000, Vol. 515 Issue 1, p86, 5p, 2 Charts, 4 Graphs
Publication Year :: 2000
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. © 2000 American Institute of Physics. [ABSTRACT FROM AUTHOR]