Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Turver, K. E."'
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
Atmospheric Cerenkov telescopes are used to detect electromagnetic showers from primary gamma rays of energy > 300 GeV and to discriminate these from cascades due to hadrons using the shape and orientation of the Cerenkov images. The geomagnetic fiel
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906139
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Murray, J. A., Orford, K. J., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
The University of Durham Mark 6 Telescope has been used to make observations of a number of AGNs visible from the Southern Hemisphere. Results are presented for limits to VHE gamma ray emission from 1ES 0323+022, PKS 0829+046, 1ES 1101-232, Cen A, PK
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906134
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
A programme of detailed simulations of the response of the Durham Mark 6 atmospheric Cherenkov telescope is in progress. The effective collecting area for triggering by gamma-ray showers after application of selection criteria is derived as a functio
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906138
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
Cen X-3 is a well-studied high-mass accreting X-ray binary and a variable source of high energy gamma rays from 100 MeV to 1 TeV. The object has been extensively monitored with the University of Durham Mark 6 telescope. Results of observations, inclu
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906137
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
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
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906132
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., O'Connell, M. G. G., Osborne, J. L., Rayner, S. M., Shaw, S. E., Turver, K. E.
Observations have been made with the University of Durham Mark 6 telescope of a number of supernova remnants and young pulsars (Vela pulsar, PSR B1055-52, PSR J1105-6107, PSR J0537-6910 and PSR B0540-69). No VHE gamma ray emission, either steady or p
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906136
Autor:
Chadwick, P M, Lyons, K, McComb, T J L, Orford, K J, Osborne, J L, Rayner, S M, Shaw, S E, Turver, K E
Publikováno v:
J.Phys.G25:1749-1753,1999
TeV gamma rays from the blazar Markarian 501 have been detected with the University of Durham Mark 6 atmospheric Cerenkov telescope using the imaging technique at large zenith angles. Observations were made at zenith angles in the range 70 - 73 deg d
Externí odkaz:
http://arxiv.org/abs/astro-ph/9904405
Autor:
Chadwick, P. M., Lyons, K., McComb, T. J. L., Orford, K. J., Osborne, J. L., Rayner, S. M., Roberts, I. D., Shaw, S. E., Turver, K. E.
Publikováno v:
J.Phys.G25:1223-1233,1999
Atmospheric Cerenkov telescopes are used to detect electromagnetic showers from primary gamma rays of energy ~300 GeV - ~10 TeV and to discriminate these from cascades due to hadrons using the Cerenkov images. The geomagnetic field affects the develo
Externí odkaz:
http://arxiv.org/abs/astro-ph/9904082