Ultra-high-energy gamma rays: Current status

1993 ◽  
Author(s):  
Gaurang B. Yodh
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Current Status ◽  
Ultra High Energy ◽  
High Energy Gamma ◽  
Energy Gamma

scholarly journals Very High Energy Gamma Rays from Plerions: CANGAROO Results

1998 ◽  
Vol 188 ◽  
pp. 125-128
Author(s):  
T. Kifune
Keyword(s):  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Current Status ◽  
Emission Region ◽  
Thermal Processes ◽  
High Energy Gamma ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

The current status of very high energy gamma ray astronomy (in ~ 1 TeV region) is described by using as example results of CANGAROO (Collaboration of Australia and Nippon for a GAmma Ray Observatory in the Outback). Gamma rays at TeV energies, emitted through inverse Compton effect of electrons or π0 decay from proton interaction, provide direct evidence on “hot” non-thermal processes of the Universe, as well as environmental features, such as the strength of magnetic field in the emission region, for the non-thermal processes.

A search for diffuse sources of ultra high energy gamma-rays

1996 ◽  
Vol 48 (1-3) ◽  
pp. 483-484
Author(s):  
A. Borione ◽  
C.E. Covault ◽  
J.W. Cronin ◽  
B.E. Fick ◽  
L.F. Fortson ◽  
...  
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Ultra High Energy ◽  
Diffuse Sources ◽  
High Energy Gamma ◽  
Energy Gamma

scholarly journals Searches for Ultra–High‐Energy Gamma Rays from SN 1987A and Centaurus X‐3

1996 ◽  
Vol 472 (2) ◽  
pp. 800-805 ◽  
Author(s):  
H. Yoshii ◽  
T. Baba ◽  
T. Kaneko ◽  
K. Suga ◽  
F. Kakimoto ◽  
...  
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Gamma ◽  
Sn 1987A ◽  
Energy Gamma

A search for ultra-high-energy gamma rays from supernova 1987A

1988 ◽  
Vol 326 ◽  
pp. L9 ◽  
Author(s):  
D. Ciampa ◽  
D. J. Bird ◽  
R. W. Clay ◽  
P. G. Edwards ◽  
R. J. Protheroe
Keyword(s):  
Gamma Rays ◽  
High Energy ◽  
Ultra High Energy ◽  
High Energy Gamma ◽  
Supernova 1987A ◽  
Energy Gamma

A search for prompt ultra-high-energy gamma rays from supernova 1987a

1987 ◽  
Vol 7 (1) ◽  
pp. 73-74 ◽  
Author(s):  
D. J. Bird ◽  
T. E. G. Bruce ◽  
D. Ciampa ◽  
R. W. Clay ◽  
C. L. Corani ◽  
...  
Keyword(s):  
Gamma Rays ◽  
Large Magellanic Cloud ◽  
High Energy ◽  
Ultra High Energy ◽  
Air Shower ◽  
High Energy Gamma ◽  
Supernova 1987A ◽  
Upper Limits ◽  
Energy Gamma ◽  
Shower Array

AbstractA search has been made using the Buckland Park air shower array for evidence of any excess of events from the direction of the recent supernova in the Large Magellanic Cloud. Upper limits resulting from this search and their significance are discussed in this paper.

scholarly journals The Gamma-Ray Window to Intergalactic Magnetism

Universe ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. 223
Author(s):  
Rafael Alves Batista ◽  
Andrey Saveliev
Keyword(s):  
Magnetic Fields ◽  
Gamma Rays ◽  
Gamma Ray ◽  
High Energy ◽  
Current Status ◽  
High Energy Gamma ◽  
Energy Gamma ◽  
Intergalactic Space ◽  
Charged Component ◽  
Gamma Ray Telescopes

One of the most promising ways to probe intergalactic magnetic fields (IGMFs) is through gamma rays produced in electromagnetic cascades initiated by high-energy gamma rays or cosmic rays in the intergalactic space. Because the charged component of the cascade is sensitive to magnetic fields, gamma-ray observations of distant objects such as blazars can be used to constrain IGMF properties. Ground-based and space-borne gamma-ray telescopes deliver spectral, temporal, and angular information of high-energy gamma-ray sources, which carries imprints of the intervening magnetic fields. This provides insights into the nature of the processes that led to the creation of the first magnetic fields and into the phenomena that impacted their evolution. Here we provide a detailed description of how gamma-ray observations can be used to probe cosmic magnetism. We review the current status of this topic and discuss the prospects for measuring IGMFs with the next generation of gamma-ray observatories.

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