Giant Air Shower Array Shows Cosmic‐Ray Spectrum Violating Greisen Cutoff

Physics Today ◽  
1998 ◽  
Vol 51 (10) ◽  
pp. 19-21 ◽  
Author(s):  
Bertram Schwarzschild
Keyword(s):  
Cosmic Ray ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Telescope Array Experiment

2019 ◽  
Vol 208 ◽  
pp. 08002
Author(s):  
Shoichi Ogio
Keyword(s):  
Cosmic Ray ◽  
Low Energy ◽  
Current Status ◽  
Future Prospects ◽  
Fluorescence Detector ◽  
Telescope Array ◽  
Air Shower ◽  
Primary Particles ◽  
Shower Array ◽  
Air Shower Array

The Telescope Array is the largest hybrid cosmic ray detector in the Northern hemisphere designed to measure primary particles in 4 PeV to 100 EeV range. The main TA detector consists of an air shower array of 507 plastic scintillation counters on a 1.2 km square grid and fluorescence detectors at three stations overlooking the sky above the air shower array. The experiment and its recent measurements - spectrum, composition, and anisotropy - is reviewed. Recently the construction of the TA Low energy Extension (TALE) detector, which consists of an additional fluorescence detector and an infill array, was finished. TALE lowers the energy threshold of TA down to 4 PeV. We are also constructing the TAx4 detector to increase statistics in particular at the highest energies. The current status and the future prospects of these new TAx4 experiments is reported.

Development of the Buckland Park Cosmic Ray Air Shower Array for Ultra High Energy Gamma Ray Astronomy

1986 ◽  
Vol 6 (3) ◽  
pp. 335-338 ◽  
Author(s):  
D. Ciampa ◽  
R. W. Clay ◽  
C. L. Corani ◽  
P. G. Edwards ◽  
J. R. Patterson
Keyword(s):  
Gamma Ray ◽  
Cosmic Ray ◽  
High Energy ◽  
Ultra High Energy ◽  
Gamma Ray Astronomy ◽  
Air Shower ◽  
High Energy Gamma ◽  
Energy Gamma ◽  
Shower Array ◽  
Air Shower Array

AbstractThe Buckland Park air shower array is being developed particularly for use as an ultra-high-energy gamma ray astronomy telescope. The properties of this instrument are described with an emphasis on improvements being made to its angular resolution. Some early data are presented to illustrate the way in which the data obtained will be used.

scholarly journals OBSERVATION OF COSMIC-RAY ANISOTROPY WITH THE ICETOP AIR SHOWER ARRAY

2013 ◽  
Vol 765 (1) ◽  
pp. 55 ◽  
Author(s):  
M. G. Aartsen ◽  
R. Abbasi ◽  
Y. Abdou ◽  
M. Ackermann ◽  
J. Adams ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

scholarly journals MULTI-TeV GAMMA-RAY OBSERVATION FROM THE CRAB NEBULA USING THE TIBET-III AIR SHOWER ARRAY FINELY TUNED BY THE COSMIC RAY MOON'S SHADOW

2009 ◽  
Vol 692 (1) ◽  
pp. 61-72 ◽  
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
S. W. Cui ◽  
Danzengluobu ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Crab Nebula ◽  
Cosmic Ray ◽  
Air Shower ◽  
The Crab Nebula ◽  
Shower Array ◽  
Air Shower Array

The cosmic-ray energy spectrum around the knee measured by the Tibet-III air-shower array

2008 ◽  
Vol 175-176 ◽  
pp. 318-321 ◽  
Author(s):  
M. Amenomori ◽  
S. Ayabe ◽  
X.J. Bi ◽  
D. Chen ◽  
S.W. Cui ◽  
...  
Keyword(s):  
Energy Spectrum ◽  
Cosmic Ray ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Northern Sky Galactic Cosmic Ray Anisotropy between 10 and 1000 TeV with the Tibet Air Shower Array

2017 ◽  
Vol 836 (2) ◽  
pp. 153 ◽  
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
T. L. Chen ◽  
W. Y. Chen ◽  
...  
Keyword(s):  
Cosmic Ray ◽  
Air Shower ◽  
Galactic Cosmic Ray ◽  
Shower Array ◽  
Air Shower Array

scholarly journals On the Solar Cycle Variation of the Solar Diurnal Anisotropy of Multi-TeV Cosmic-ray Intensity Observed with the Tibet Air Shower Array

2019 ◽  
Vol 208 ◽  
pp. 08012
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
T. L. Chen ◽  
W. Y. Chen ◽  
...  
Keyword(s):  
Solar Cycle ◽  
Cosmic Ray ◽  
Local Solar Time ◽  
Solar Cycle Variation ◽  
Cosmic Ray Intensity ◽  
Air Shower ◽  
23Rd Solar Cycle ◽  
Diurnal Anisotropy ◽  
Shower Array ◽  
Air Shower Array

We analyze the temporal variation of the solar diurnal anisotropy of the multi-TeV cosmic-ray intensity observed with the Tibet air shower array from 2000 to 2009, covering the maximum and minimum of the 23rd solar cycle. We comfirm that a remarkable additional anisotropy component is superposed on the Compton-Getting anisotropy at 4.0 TeV, while its amplitude decreases at higher energy regions. In constrast to the additional anisotropy reported by the Matsushiro experiment at 0.6 TeV, we find the residual component measured by Tibet at multi-TeV energies is consistent with being stable, with a fairly constant amplitude of 0.041% ± 0.003% and a phase at around 07.17 ± 00.16 local solar time at 4.0 TeV. This suggests the additional anisotropy observed by the Tibet experiment could result from mechanisms unrelated to solar activities.

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