scholarly journals Evidence for Postquiescent, High-Energy Emission from Gamma-Ray Burst 990104

2002 ◽  
Vol 574 (1) ◽  
pp. L47-L50 ◽  
Author(s):  
D. N. Wren ◽  
D. L. Bertsch ◽  
S. Ritz
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Burst ◽  
Energy Emission ◽  
High Energy Emission

scholarly journals High‐Energy Emission from the Prompt Gamma‐Ray Burst

2003 ◽  
Vol 585 (2) ◽  
pp. 885-889 ◽  
Author(s):  
Dafne Guetta ◽  
Jonathan Granot
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Prompt Gamma ◽  
Gamma Ray Burst ◽  
Energy Emission ◽  
High Energy Emission

scholarly journals Very-high-energy Emission and Cascade Radiation of Gamma-Ray Burst Afterglows: Homogeneous versus Wind External Media

2021 ◽  
Vol 908 (2) ◽  
pp. 225
Author(s):  
Xiao-Li Huang ◽  
Ze-Rui Wang ◽  
Ruo-Yu Liu ◽  
Xiang-Yu Wang ◽  
En-Wei Liang
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Burst ◽  
Energy Emission ◽  
Very High Energy ◽  
High Energy Emission ◽  
Very High

scholarly journals High-energy emission as a test of the prior emission model for gamma-ray burst afterglows

2010 ◽  
Vol 402 (1) ◽  
pp. L54-L58 ◽  
Author(s):  
Kohta Murase ◽  
Kenji Toma ◽  
Ryo Yamazaki ◽  
Shigehiro Nagataki ◽  
Kunihito Ioka
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Emission Model ◽  
Gamma Ray Burst ◽  
Energy Emission ◽  
High Energy Emission

scholarly journals CONSTRAINING THE HIGH-ENERGY EMISSION FROM GAMMA-RAY BURSTS WITHFERMI

2012 ◽  
Vol 754 (2) ◽  
pp. 121 ◽  
Author(s):  
◽  
M. Ackermann ◽  
M. Ajello ◽  
L. Baldini ◽  
G. Barbiellini ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Energy Emission ◽  
High Energy Emission

scholarly journals Upper limits on the high-energy emission from gamma-ray bursts observed by AGILE-GRID

2012 ◽  
Vol 547 ◽  
pp. A95 ◽  
Author(s):  
F. Longo ◽  
E. Moretti ◽  
L. Nava ◽  
R. Desiante ◽  
M. Olivo ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Energy Emission ◽  
Upper Limits ◽  
High Energy Emission

scholarly journals High-energy emission from gamma-ray bursts

2018 ◽  
Vol 27 (13) ◽  
pp. 1842003 ◽  
Author(s):  
Lara Nava
Keyword(s):  
Gamma Ray ◽  
Theoretical Models ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Quality Of Data ◽  
Large Area ◽  
High Energies ◽  
Energy Emission ◽  
High Energy Emission ◽  
Very High

The number of gamma-ray bursts (GRBs) detected at high energies ([Formula: see text][Formula: see text]GeV) has seen a rapid increase over the last decade, thanks to observations from the Fermi-Large Area Telescope. The improved statistics and quality of data resulted in a better characterization of the high-energy emission properties and in stronger constraints on theoretical models. In spite of the many achievements and progresses, several observational properties still represent a challenge for theoretical models, revealing how our understanding is far from being complete. This paper reviews the main spectral and temporal properties of [Formula: see text][Formula: see text]GeV emission from GRBs and summarizes the most promising theoretical models proposed to interpret the observations. Since a boost for the understanding of GeV radiation might come from observations at even higher energies, the present status and future prospects for observations at very-high energies (above [Formula: see text][Formula: see text]100[Formula: see text]GeV) are also discussed. The improved sensitivity of upcoming facilities, coupled to theoretical predictions, supports the concrete possibility for future ground GRB detections in the high/very-high energy domain.

scholarly journals Observational Manifestations of Young Neutron Stars: Spin-powered Pulsars

2004 ◽  
Vol 218 ◽  
pp. 13-20 ◽  
Author(s):  
Michael Kramer
Keyword(s):  
Neutron Stars ◽  
Gamma Ray ◽  
High Energy ◽  
Electromagnetic Spectrum ◽  
Crab Pulsar ◽  
Pulsar Emission ◽  
Energy Emission ◽  
Radio Frequencies ◽  
High Energy Emission

The largest number of known young neutron stars axe observed as spin-powered pulsars. While the majority of those are detected at radio frequencies, an increasing number can be studied in other parts of the electromagnetic spectrum as well. The Crab pulsar is the prototype of a young pulsar which can be observed from radio to gamma-ray frequencies, providing a red thread of discussion during a tour through the pulsar properties observed across the electromagnetic spectrum. The basic observational features of pulsar emission are presented, preparing the ground for more detailed reviews given in these proceedings. Here, particular attention will be paid to those emission features which may provide a link between the radio and high-energy emission processes.

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