Low-energy gamma-ray emission close to CG 135 + 1

1980 ◽  
Vol 239 ◽  
pp. L49 ◽  
Author(s):  
F. Perotti ◽  
A. della Ventura ◽  
G. Villa ◽  
G. di Cocco ◽  
R. C. Butler ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Low Energy ◽  
Energy Gamma ◽  
Gamma Ray Emission

EGRET Limits on High-Energy Gamma-Ray Emission from X-Ray-- and Low-Energy Gamma-Ray--selected Seyfert Galaxies

1993 ◽  
Vol 416 ◽  
pp. L53 ◽  
Author(s):  
Y. C. Lin ◽  
D. L. Bertsch ◽  
B. L. Dingus ◽  
C. E. Fichtel ◽  
R. C. Hartman ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Seyfert Galaxies ◽  
High Energy ◽  
Low Energy ◽  
X Ray ◽  
High Energy Gamma ◽  
Energy Gamma ◽  
Gamma Ray Emission

KLEIN–NISHINA EFFECTS IN THE PROMPT AND EXTENDED HIGH-ENERGY GAMMA-RAY EMISSION OF GAMMA-RAY BURSTS

2011 ◽  
Vol 20 (10) ◽  
pp. 2023-2027 ◽  
Author(s):  
XIANG-YU WANG ◽  
HAO-NING HE ◽  
ZHUO LI
Keyword(s):  
Gamma Ray ◽  
Early Time ◽  
High Energy ◽  
Gamma Ray Bursts ◽  
Low Energy ◽  
Large Area ◽  
Wide Range ◽  
Inverse Compton ◽  
Energy Gamma ◽  
Gamma Ray Emission

Prompt and extended high-energy (> 100 MeV) gamma-ray emission has been observed from more than ten gamma-ray bursts by Fermi Large Area Telescope (LAT). Such emission is likely to be produced by synchrotron radiation of electrons accelerated in internal or external shocks. We show that IC scattering of these electrons with synchrotron photons are typically in the Klein–Nishina (KN) regime. For the prompt emission, the KN effect can suppress the IC component and as a result, one single component is seen in some strong bursts. The KN inverse-Compton cooling may also affect the low-energy electron number distribution and hence result in a hard low-energy synchrotron photon spectrum. During the afterglow, KN effect makes the Compton-Y parameter generally less than 1 in the first seconds for a wide range of parameter space. Furthermore, we suggest that the KN effect can explain the somewhat faster-than-expected decay of the early-time high-energy emission observed in GRB090510 and GRB090902B.

scholarly journals Low Energy Gamma-Ray Emission from Galactic Black Holes

2008 ◽  
Author(s):  
Gary L. Case ◽  
Michael L. Cherry ◽  
James C. Ling ◽  
William A. Wheaton ◽  
Sandip K. Chakrabarti ◽  
...  
Keyword(s):  
Black Holes ◽  
Gamma Ray ◽  
Low Energy ◽  
Energy Gamma ◽  
Gamma Ray Emission

C-SPRINT: a prototype Compton camera system for low energy gamma ray imaging

2002 ◽  
Author(s):  
J.W. LeBlanc ◽  
N.H. Clinthorne ◽  
C.-H. Hua ◽  
E. Nygard ◽  
W.L. Rogers ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Low Energy ◽  
Compton Camera ◽  
Camera System ◽  
Gamma Ray Imaging ◽  
Energy Gamma

scholarly journals Constraints on the late X-ray radiation from the low-energy gamma-ray burst of December 3, 2003: INTEGRAL data

2006 ◽  
Vol 32 (5) ◽  
pp. 297-301 ◽  
Author(s):  
S. Yu. Sazonov ◽  
A. A. Lutovinov ◽  
E. M. Churazov ◽  
R. A. Sunyaev
Keyword(s):  
Gamma Ray ◽  
Low Energy ◽  
Gamma Ray Burst ◽  
X Ray ◽  
Energy Gamma ◽  
Integral Data

Observations of the galactic center with the GSFC Low-Energy Gamma-Ray Spectrometer: Preliminary results

1982 ◽  
Author(s):  
W. S. Paciesas ◽  
T. L. Cline ◽  
B. J. Teegarden ◽  
J. Tueller ◽  
P. Durouchoux ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Galactic Center ◽  
Low Energy ◽  
Preliminary Results ◽  
Gamma Ray Spectrometer ◽  
Energy Gamma
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