Zobrazeno 1 - 10
of 11
pro vyhledávání: '"J C Perrett"'
Publikováno v:
Weather. 59:12-14
Autor:
Todor Stanev, J. T. P. M. van Stekelenborg, J. C. Perrett, A. M. Hillas, N. J. T. Smith, Thomas K. Gaisser, J. Lloyd-Evans, J. Beaman, P. A. Johnson, J. Petrakis, Alan Watson
Publikováno v:
Physical Review D. 48:4504-4517
We report on the results of a search for point sources of ultrahigh energy γ radiation in data collected in 1988, 1990, and 1991 by the South Pole Air Shower Experiment. Nine predefined point sources were investigated: the x-ray binaries SMC X-1, LM
Publikováno v:
Journal of Physics G: Nuclear and Particle Physics. 17:1291-1302
The authors describe the teaching and implementation of a neural network to estimate the core position and energy of extensive air showers recorded by the South Pole air shower experiment, SPASE. The neural network was found to be approximately 300 t
Autor:
A. Walker, J. T. P. M. van Stekelenborg, J. C. Perrett, Alan Watson, P. T. Reynolds, M. A. Pomerantz, T. C. Weekes, A. M. Hillas
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 301:574-578
We describe a method which has been used to evaluate the pointing accuracy and angular resolution of the South Pole air shower array. It makes use of coincidences between the air shower array and a very simple air Cherenkov detector of small aperture
Autor:
N. J. T. Smith, J. Beaman, A. M. Hillas, J. Lloyd-Evans, J. Petrakis, P. A. Johnson, Alan Watson, Todor Stanev, J. T. P. M. van Stekelenborg, Thomas K. Gaisser, J. C. Perrett
Publikováno v:
Physical review. D, Particles and fields. 48(10)
We describe the performance of an extensive air shower array sited at the geographic South Pole from its construction in 1987 to the austral summer of 1991. The stability of the array over this four year period when the detectors were subjected to te
Publikováno v:
Journal of Physics G: Nuclear Physics. 9:1569-1576
The lateral distribution of densities recorded by thin scintillators in air showers produced by primary cosmic rays with 5*1018 or approximately=4*1019 eV. Maps of the density patterns recorded in two events are shown.
Publikováno v:
Journal of Physics E: Scientific Instruments. 22:476-479
A pulsed-laser-fibre-optic system which can be used to monitor continuously the time delays in experiments using a large number of fast photomultipliers, is described. It can detect relative changes of 0.2 ns in time delays of up to 1000 ns and has b
Autor:
M. Patel, M. A. Pomerantz, J. C. Perrett, N. J. T. Smith, R. J. O. Reid, A. M. Hillas, Alan Watson, P. A. Ogden
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 276:622-627
We describe the construction and performance characteristics of an extensive air shower array which has been established at the geographic South Pole. The experiment has been designed to search for sources for cosmic rays with primary energies above
Autor:
A. M. Hillas, J. C. Perrett, N. J. T. Smith, R. J. O. Reid, Alan Watson, M. A. Pomerantz, Todor Stanev, Thomas K. Gaisser
Publikováno v:
Physical review letters. 62(13)
We report analysis of data from the South Pole Air Shower Experiment taken in January and February 1988 while the array was being commissioned. These first results are already of interest because they lead to a limit on an air-shower signal from SN 1
Autor:
N. J. T. Smith, Alan Watson, P. J. V. Eames, R. J. O. Reid, J C Perrett, A. A. West, A. Lambert
Publikováno v:
Very High Energy Gamma Ray Astronomy ISBN: 9789401082051
Observations of PeV y-rays from Cygnus X-3 made at Haverah Park between 1979 and 1985 are described. Evidence for a change in the light curve over this period is summarized.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43a0bab1db6ba693fbadfa09f8002f56
https://doi.org/10.1007/978-94-009-3831-1_28
https://doi.org/10.1007/978-94-009-3831-1_28