Inverse Compton γ-ray source for nuclear physics and related applications

1996 ◽  
Vol 375 (1-3) ◽  
pp. 530-534 ◽  
Author(s):  
P.G O'Shea ◽  
V.N Litvinenko ◽  
J.M.J Madey ◽  
N.R Roberson ◽  
E.C Schreiber ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Inverse Compton ◽  
Γ Ray

The TUNL-FELL inverse Compton γ-ray source as a nuclear physics facility

1996 ◽  
Vol 378 (1-2) ◽  
pp. 1-20 ◽  
Author(s):  
T. Scott Carman ◽  
Vladimir Litveninko ◽  
John Madey ◽  
Charles Neuman ◽  
Blaine Norum ◽  
...  
Keyword(s):  
Nuclear Physics ◽  
Inverse Compton ◽  
Γ Ray

scholarly journals Study of nuclear physics input-parameters via high-resolution γ-ray spectroscopy

2017 ◽  
Vol 165 ◽  
pp. 01044
Author(s):  
Philipp Scholz ◽  
Felix Heim ◽  
Jan Mayer ◽  
Mark Spieker ◽  
Andreas Zilges
Keyword(s):  
High Resolution ◽  
Nuclear Physics ◽  
Input Parameters ◽  
Γ Ray

scholarly journals Very High Energy γ-Ray Generation Near The Light Cylinder of an Axisymmetric Rotator: Cos-B Like γ-Ray Sources

1992 ◽  
Vol 128 ◽  
pp. 207-208
Author(s):  
S. V. Bogovalov ◽  
YU. D. Kotov
Keyword(s):  
High Energy ◽  
Relativistic Electrons ◽  
X Rays ◽  
Inverse Compton Scattering ◽  
Light Cylinder ◽  
Radiation Spectra ◽  
Inverse Compton ◽  
Very High Energy ◽  
Γ Ray ◽  
Very High

AbstractSuper-hard γ-ray radiation spectra have been calculated. This radiation is generated near the velocity-of-light cylinder through the process of inverse-Compton scattering of relativistic electrons by thermal photons radiated by a neutron star. These calculations have been compared with observations of the Crab and Vela pulsars at 1000-GeV γ-ray energies. A correlation between γ-ray flares and those in soft (Ex ≃ lkeV) X-rays are predicted.

scholarly journals Gamma-ray production in selected Wolf-Rayet binaries

2003 ◽  
Vol 212 ◽  
pp. 150-151
Author(s):  
Paula Benaglia ◽  
Gustavo E. Romero
Keyword(s):  
Particle Acceleration ◽  
Gamma Ray ◽  
Thermal Flux ◽  
Detection Threshold ◽  
High Energy ◽  
Early Type ◽  
Acceleration Region ◽  
Thermal Radio Emission ◽  
Inverse Compton ◽  
Γ Ray

In the colliding wind region of early-type binaries, electrons can be accelerated up to relativistic energies, as demonstrated by the detection of non-thermal radio emission from several WR+OB systems. The particle acceleration region is exposed to strong photon fields, and inverse-Compton cooling of the electrons could result in a substantial high-energy non-thermal flux. We present here preliminary results of a study of the binaries WR 140, WR 146, and WR 147 in the light of recent radio and γ-ray observations. We show that under reasonable assumptions WR 140 can produce the γ-ray flux from the GRO-egret source 3EG J 2022+4317. WR 146 and WR 147 are below the detection threshold.

scholarly journals Particle Acceleration in Extragalactic Jets and Implications for the High-Energy Emission from Blazars

1994 ◽  
Vol 159 ◽  
pp. 29-32
Author(s):  
R. Schlickeiser ◽  
C. D. Dermer
Keyword(s):  
Compton Scattering ◽  
Accretion Disk ◽  
High Energy ◽  
Relativistic Electrons ◽  
Spectral Evolution ◽  
Inverse Compton Scattering ◽  
Central Engine ◽  
Inverse Compton ◽  
Γ Rays ◽  
Γ Ray

We demonstrate that the prevalence of superluminal sources in the sample of γ-ray blazars and the peak of their luminosity spectra at γ-ray energies can be readily explained if the γ-rays result from the inverse Compton scattering of the accretion disk radiation by relativistic electrons in outflowing plasam jets. Compton scattering of external radiation by nonthermal particles in blazar jets is dominated by accretion disk photons rather than scattered radiation to distances of ∼ 0.01–0.1 pc from the central engine for standard parameters. The size of the γ-ray photosphere and the spectral evolution of the relativistic electron spectra constrain the location of the acceleration and emission sites in these objects.

scholarly journals Optical Monitoring of Gamma-Ray Loud Blazars

1996 ◽  
Vol 175 ◽  
pp. 287-288
Author(s):  
C.M. Raiteri ◽  
G. Ghisellini ◽  
M. Villata ◽  
G. DE FRANCESCO ◽  
S. Bosio ◽  
...  
Keyword(s):  
Gamma Ray ◽  
High Energy ◽  
Significant Fraction ◽  
Optical Monitoring ◽  
Inverse Compton ◽  
Theoretical Predictions ◽  
Γ Ray ◽  
Uv Photons ◽  
High Energy Particles ◽  
Crucial Test

The observations by the Compton Gamma Ray Observatory (CGRO) have shown that highly variable and radio-loud quasars emit a significant fraction of their energy in the γ band. According to the Inverse Compton model, the γ-ray emission is due to upscattering of soft (IR-optical-UV) photons by high energy particles. Optical monitoring is thus of great value in providing information on the mechanisms that rule the production of the seed photons for the γ-ray radiation and on the γ-ray emission itself. In particular, detection of variability correlations between optical and γ-ray emissions would be a crucial test for the theoretical predictions.

scholarly journals Supernova Optical Observations and Theory

2013 ◽  
Vol 9 (S296) ◽  
pp. 77-85
Author(s):  
Keiichi Maeda ◽  
Melina C. Bersten ◽  
Takashi J. Moriya ◽  
Gaston Folatelli ◽  
Ken'ichi Nomoto
Keyword(s):  
Radioactive Decay ◽  
Compton Effect ◽  
Optical Observations ◽  
Optical Data ◽  
Frequency Data ◽  
Inverse Compton Effect ◽  
Inverse Compton ◽  
Γ Ray ◽  
Synthesized Materials

AbstractWe review emission processes within the supernova (SN) ejecta. Examples of the application of the theory to observational data are presented. The emission processes and thermal condition within the SN ejecta change as a function of time, and multi-epoch observations are important to obtain comprehensive views. Through the analyses, we can constrain the progenitor radius, compositions as a function of depth, ejecta properties, explosion asymmetry and so on. Multi-frequency follow-up is also important, including radio synchrotron emissions and the inverse Compton effect, γ-ray emissions from radioactive decay of newly synthesized materials. The optical data are essential to make the best use of the multi-frequency data.

scholarly journals A Joint Model for Radio and γ-ray Emission from Pulsars

2003 ◽  
Vol 214 ◽  
pp. 167-170 ◽  
Author(s):  
G. J. Qiao ◽  
K. J. Lee ◽  
H. G. Wang ◽  
R. X. Xu
Keyword(s):  
Electromagnetic Wave ◽  
Compton Scattering ◽  
Gamma Ray ◽  
Joint Model ◽  
Acceleration Process ◽  
Inverse Compton Scattering ◽  
Band Emission ◽  
Null Surface ◽  
Inverse Compton ◽  
Γ Ray

Although pulsars can radiate electromagnetic wave from radio to gamma ray bands, we still have no a united model to understand the multi-band emission. In this paper the effort for a joint model is presented. The inverse Compton scattering (ICS) and a second acceleration process near the null surface are involved to account for the radio and the gama-ray emission, respectively. Various kind of pulse profiles and other observational properties can be reproduced.

scholarly journals Observation of inverse Compton emission from a long γ-ray burst

Nature ◽  
2019 ◽  
Vol 575 (7783) ◽  
pp. 459-463 ◽  
Author(s):  
P. Veres ◽  
◽  
P. N. Bhat ◽  
M. S. Briggs ◽  
W. H. Cleveland ◽  
...  
Keyword(s):  
Inverse Compton ◽  
Γ Ray
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