Predominantly electromagnetic air showers of energy 1014 eV to 1016 eV

1968 ◽  
Vol 46 (10) ◽  
pp. S72-S74 ◽  
Author(s):  
K. Kamata ◽  
S. Shibata ◽  
O. Saavedra ◽  
V. Domingo ◽  
K. Suga ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Cosmic Radiation ◽  
Progress Report ◽  
Point Sources ◽  
Air Showers ◽  
Air Shower ◽  
Upper Limits ◽  
Primary Cosmic Radiation ◽  
Shower Array ◽  
Air Shower Array

The Chacaltaya air shower array has continued to be used for the accumulation of muon-poor air showers in an attempt to find evidence of gamma rays in the primary cosmic radiation. A progress report is given here, and some upper limits to the intensities are presented for possible point sources and for galactic and isotropic backgrounds.

scholarly journals Search for astrophysical PeV gamma rays from point sources with Carpet-2

2019 ◽  
Vol 207 ◽  
pp. 03004 ◽  
Author(s):  
D. D. Dzhappuev ◽  
I. M. Dzaparova ◽  
E. A. Gorbacheva ◽  
I. S. Karpikov ◽  
M. M. Khadzhiev ◽  
...  
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Point Sources ◽  
Muon Detector ◽  
Air Shower ◽  
Early Results ◽  
Upper Limits ◽  
Shower Array ◽  
Air Shower Array

Early results of the search for Eγ > 1 PeV cosmic photons from point sources with the data of Carpet–2, an air-shower array equipped with a 175 m2 muon detector, are presented. They include 95% CL upper limits on PeV photon fluxes from stacked directions of high-energy IceCube neutrino events and from four predefined sources, Crab, Cyg X-3, Mrk 421 and Mrk 501. An insignificant excess of events from Mrk 421 will be further monitored. Prospects of the use of the upgraded installation, Carpet–3 (410 m2 muon detector), scheduled to start data taking in 2019, for searches of Eγ > 100 TeV photons, are briefly discussed.

scholarly journals Search for diffuse cosmic gamma rays of energy Eγ> 100 TeV with the Carpet-3 air shower array

2017 ◽  
Vol 798 ◽  
pp. 012028 ◽  
Author(s):  
D D Dzhappuev ◽  
V B Petkov ◽  
A S Lidvansky ◽  
V I Volchenko ◽  
G V Volchenko ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Limits on the TeV flux of diffuse gamma rays as measured with the HEGRA air shower array

2002 ◽  
Vol 17 (4) ◽  
pp. 459-475 ◽  
Author(s):  
F.A. Aharonian ◽  
A.G. Akhperjanian ◽  
J.A. Barrio ◽  
K. Bernlöhr ◽  
H. Bojahr ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

Improving the Angular Resolution of the Buckland Park Air Shower Array

1991 ◽  
Vol 9 (1) ◽  
pp. 113-114
Author(s):  
R. Meyhandan ◽  
R. W. Clay
Keyword(s):  
Cosmic Rays ◽  
Gamma Rays ◽  
Angular Resolution ◽  
Air Showers ◽  
Air Shower ◽  
Plane Front ◽  
Front Shape ◽  
Shower Array ◽  
Primary Cosmic Rays ◽  
Arrival Directions

AbstractAir showers initiated by primary cosmic rays and gamma rays produce shower fronts which are curved. However, the arrival directions of air shower events have normally been fitted assuming a planar shower front. We present a technique which takes the average shower front shape into account to assign an improved shower direction after a first analysis assuming a plane front. We then examine the resulting angular resolution of the Buckland Park array.

Search for steady emission of 10-TeV gamma rays from the Crab Nebula, Cygnus X-3, and Hercules X-1 using the Tibet air shower array

1992 ◽  
Vol 69 (17) ◽  
pp. 2468-2471 ◽  
Author(s):  
M. Amenomori ◽  
Z. Cao ◽  
L. K. Ding ◽  
Z. Y. Feng ◽  
K. Hibino ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Crab Nebula ◽  
Air Shower ◽  
Tev Gamma Rays ◽  
The Crab Nebula ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Observation of Multi‐TeV Diffuse Gamma Rays from the Galactic Plane with the Tibet Air Shower Array

2002 ◽  
Vol 580 (2) ◽  
pp. 887-895 ◽  
Author(s):  
M. Amenomori ◽  
S. Ayabe ◽  
S. H. Cui ◽  
L. K. Ding ◽  
X. H. Ding ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Galactic Plane ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

Search for 10 TeV Gamma-Rays from the Nearby AGNs with the Tibet Air Shower Array

1998 ◽  
pp. 440-441
Author(s):  
L. K. Ding ◽  
T. Kobayashi ◽  
K. Mizutani ◽  
A. Shiomi ◽  
Y. H. Tan ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Air Shower ◽  
Tev Gamma Rays ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Search for cosmic gamma rays of ultra-high energies with the Baksan air shower array

2020 ◽  
Vol 1468 ◽  
pp. 012101
Author(s):  
A S Lidvansky ◽  
D D Dzhappuev ◽  
V B Petkov ◽  
E A Gorbacheva ◽  
I M Dzaparova ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Air Shower ◽  
High Energies ◽  
Shower Array ◽  
Air Shower Array

scholarly journals An updated search of steady TeV γ-ray point sources in northern hemisphere using the Tibet air shower array

2008 ◽  
Vol 32 (11) ◽  
pp. 868-872 ◽  
Author(s):  
Wang Yue ◽  
Bi Xiao-Jun ◽  
Cui Shu-Wang ◽  
Ding Lin-Kai ◽  
Dan Zeng-Luo-Bu ◽  
...  
Keyword(s):  
Northern Hemisphere ◽  
Point Sources ◽  
Air Shower ◽  
Γ Ray ◽  
Shower Array ◽  
Air Shower Array
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