Gamma-ray and Neutrino Diffuse Emissions of the Galaxy at very High Energy

2017 ◽  
Vol 291-293 ◽  
pp. 9-14
Author(s):  
D. Grasso ◽  
D. Gaggero ◽  
A. Marinelli ◽  
A. Urbano ◽  
M. Valli
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
The Galaxy ◽  
Very High Energy ◽  
Diffuse Emissions ◽  
Very High

scholarly journals Very high energy gamma-ray observations of the galaxy clusters Abell 496 and Abell 85 with HESS

2008 ◽  
Vol 495 (1) ◽  
pp. 27-35 ◽  
Author(s):  
F. Aharonian ◽  
A. G. Akhperjanian ◽  
G. Anton ◽  
U. Barres de Almeida ◽  
A. R. Bazer-Bachi ◽  
...  
Keyword(s):  
Galaxy Clusters ◽  
Gamma Ray ◽  
High Energy ◽  
High Energy Gamma ◽  
The Galaxy ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

On the very-high-energy gamma-ray flux from the galaxy Mrk 421 in 2004

2005 ◽  
Vol 31 (9) ◽  
pp. 575-578
Author(s):  
V. V. Fidelis ◽  
A. A. Stepanian ◽  
V. S. Eliseev ◽  
N. A. Zhogolev ◽  
E. M. Nekhai ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
High Energy Gamma ◽  
The Galaxy ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

scholarly journals A STRONG RADIO BRIGHTENING AT THE JET BASE OF M 87 DURING THE ELEVATED VERY HIGH ENERGY GAMMA-RAY STATE IN 2012

2014 ◽  
Vol 788 (2) ◽  
pp. 165 ◽  
Author(s):  
K. Hada ◽  
M. Giroletti ◽  
M. Kino ◽  
G. Giovannini ◽  
F. D'Ammando ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
High Energy Gamma ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

scholarly journals A Very High Energy γ-Ray Survey toward the Cygnus Region of the Galaxy

2018 ◽  
Vol 861 (2) ◽  
pp. 134 ◽  
Author(s):  
A. U. Abeysekara ◽  
A. Archer ◽  
T. Aune ◽  
W. Benbow ◽  
R. Bird ◽  
...  
Keyword(s):  
High Energy ◽  
The Galaxy ◽  
Very High Energy ◽  
Γ Ray ◽  
Very High

scholarly journals Future science issues for Galactic very-high-energy gamma-ray astronomy

2008 ◽  
Author(s):  
Diego F. Torres ◽  
Felix A. Aharonian ◽  
Werner Hofmann ◽  
Frank Rieger
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Astronomy ◽  
High Energy Gamma ◽  
Future Science ◽  
Very High Energy ◽  
Energy Gamma ◽  
Very High

BINARY PULSAR SYSTEM PSR B1259-63/LS2883 AS A GAMMA-RAY EMITTER

2014 ◽  
Vol 28 ◽  
pp. 1460169 ◽  
Author(s):  
DMITRY KHANGULYAN ◽  
SERGEY V. BOGOVALOV ◽  
FELIX A. AHARONIAN
Keyword(s):  
Energy Band ◽  
Gamma Ray ◽  
High Energy ◽  
Energy Losses ◽  
Binary Pulsar ◽  
Emission Component ◽  
Emission Enhancement ◽  
Very High Energy ◽  
Hydrodynamical Simulations ◽  
Very High

Observations of the binary pulsar PSR B1259-63/LS2883 in the high energy and very high energy domains have revealed a few quite unusual features. One of the most puzzling phenomena is the bright GeV flare detected with Fermi/LAT in 2011 January, approximately one month after periastron passage. Since the maximum luminosity in the high energy band during the flare nearly achieved the level of the pulsar spin-down energy losses, it is likely that the particles, responsible for this emission component, had a strongly anisotropic distribution, which resulted in the emission enhancement. One of the most prolific scenarios for such an emission enhancement is the Doppler boosting, which is realized in sources with relativistic motions. Interestingly, a number of hydrodynamical simulations have predicted a formation of highly relativistic outflows in binary pulsar systems, therefore scenarios, involving relativistic boosting, are very natural for these systems. However a more detailed analysis of such a possibility, presented in this study, reveals certain limitations which put strict constraints on the maximum luminosity achievable in this scenario. These constraints render the "Doppler boosting" scenario to be less feasible, especially for the synchrotron models.

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