scholarly journals High Energy γ-Rays from the Direction of the Crab Pulsar

1981 ◽  
Vol 94 ◽  
pp. 327-328
Author(s):  
T. Dzikowski ◽  
B. Grochalska ◽  
J. Gawin ◽  
J. Wdowczyk
Keyword(s):  
High Energy ◽  
Crab Pulsar ◽  
Muon Detector ◽  
Extensive Air Shower ◽  
Air Shower ◽  
Very High Energy ◽  
Γ Rays ◽  
Shower Array ◽  
Very High ◽  
Air Shower Array

A search has been made for very high energy photons from the direction of the Crab Pulsar using the Lodz extensive air shower array. This device is particularly suitable for such a study because it consists of a large muon detector which can be used to search for the characteristic muon poor showers.

High energy y-rays from the direction of the Crab pulsar

1981 ◽  
Vol 301 (1462) ◽  
pp. 641-644 ◽  
Keyword(s):  
High Energy ◽  
Point Sources ◽  
Crab Pulsar ◽  
Muon Detector ◽  
Air Showers ◽  
Extensive Air Shower ◽  
Air Shower ◽  
Very High Energy ◽  
Shower Array ◽  
Very High

An attempt is being made to extend the search for high energy y-rays from point sources to much higher energies by using the method based on investigation of the muon-poor extensive air showers. A search has been made for very high energy photons from the direction of the Crab pulsar (the best known high energy y-ray source) by using the Lodz extensive air shower array. The device is particularly suitable for such a study because it consists of a large muon detector which can be used to search for the characteristic muon-poor showers.

Detection of high energy showers by the Astroneu extensive air shower array

New Astronomy ◽  
2021 ◽  
Vol 82 ◽  
pp. 101448 ◽  
Author(s):  
A. Leisos ◽  
T. Avgitas ◽  
G. Bourlis ◽  
G.K. Fanourakis ◽  
I. Gkialas ◽  
...  
Keyword(s):  
High Energy ◽  
Extensive Air Shower ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

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

1998 ◽  
Vol 188 ◽  
pp. 440-441
Author(s):  
L.K. Ding ◽  
T. Kobayashi ◽  
K. Mizutani ◽  
A. Shiomi ◽  
Y.H. Tan ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
Galactic Nuclei ◽  
High Energy ◽  
Bl Lac Objects ◽  
Air Shower ◽  
Very High Energy ◽  
Tev Gamma Rays ◽  
Shower Array ◽  
Air Shower Array

The detection by EGRET of gamma-rays from more than 50 active galactic nuclei (AGNs) allowed us to expect these objects to be the sources of extragalactic cosmic rays at very high energy. The TeV gamma-rays from nearby BL Lac objects of the AGNs examined were detected by the Whipple Observatory collaboration. In this paper, we present the results given by the Tibet air shower array on the search for 10 TeV gamma-ray emission from 18 relatively nearby AGNs with redshifts of z < 0.07.

Underground Prototype Water Cherenkov Muon Detector with the Tibet Air Shower Array

2008 ◽  
Author(s):  
M. Amenomori ◽  
X. J. Bi ◽  
D. Chen ◽  
S. W. Cui ◽  
Danzengluobu ◽  
...  
Keyword(s):  
Muon Detector ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

The Durham extensive air shower array — I: A description

1977 ◽  
Vol 145 (2) ◽  
pp. 283-287 ◽  
Author(s):  
W.S. Rada ◽  
E.A.M. Shaat ◽  
A.C. Smith ◽  
T.R. Stewart ◽  
M.G. Thompson ◽  
...  
Keyword(s):  
Extensive Air Shower ◽  
Air Shower ◽  
Shower Array ◽  
Air Shower Array

scholarly journals Low frequency radio counterparts of HESS J1731−347 a.k.a SNR G353.6−0.7

2017 ◽  
Vol 12 (S331) ◽  
pp. 201-205
Author(s):  
A. J. Nayana ◽  
Poonam Chandra
Keyword(s):  
Radio Emission ◽  
Radio Telescope ◽  
Supernova Remnants ◽  
Low Frequency ◽  
High Energy ◽  
Spectral Indices ◽  
Thermal Radio Emission ◽  
Very High Energy ◽  
Γ Rays ◽  
Very High

AbstractHESS J1731−347 a.k.a. SNR G353.6−0.7 is one of the five known very high energy (VHE, Energy > 0.1 TeV) shell-type supernova remnants. We carried out Giant Metrewave Radio Telescope (GMRT) observations of this TeV SNR in 1390, 610 and 325 MHz bands. We detected the 325 and 610 MHz radio counterparts of the SNR G353.6−0.7 (Nayana et al. 2017). We also determined the spectral indices of individual filaments and our values are consistent with the non-thermal radio emission. We compared the radio morphology with that of VHE emission. The peak in radio emission corresponds to the faintest feature in the VHE emission. We explain this anti-correlated emission in a possible leptonic origin of the VHE γ-rays.

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