scholarly journals Thermal and resonant emission of dark age halos in the rotational lines of HeH+

2020 ◽  
Vol 101 (8) ◽  
Author(s):  
Yu. Kulinich ◽  
B. Novosyadlyj ◽  
V. Shulga ◽  
W. Han
Keyword(s):  
1978 ◽  
Vol 39 (13) ◽  
pp. 223-225 ◽  
Author(s):  
A. Nouailhat ◽  
G. Guillot ◽  
E. Mercier ◽  
Truong Van Khiem
Keyword(s):  

2020 ◽  
Vol 35 (03) ◽  
pp. 2040024 ◽  
Author(s):  
Alexander Dubov ◽  
Victor V. Dubov ◽  
Sergei P. Roshchupkin

The contemporary theoretical investigation researches the resonant emission of high-energy gamma-quanta within the process of scattering of ultrarelativistic electrons on a nucleus in the external electromagnetic field. With implementation of the resonant conditions under the field ambience the particle in the intermediate state re-modulates into the real form. Therefore, the phenomenon examination determines the functional splitting of the second order process into a pair of first-order effects that possess a possibility to develop within two reaction channels. Consequently, the first channel characterizes the kinematics of electron scattering by a nucleus and following radiation of a spontaneous gamma-quantum. The second channel delineates the spontaneous gamma-quantum radiation by an electron with subsequent scattering on a nucleus. It is important to emphasize that within a specific range of observation the calculations derive three discrete magnitudes for the resonant frequency dependency on the angle of spontaneous photon radiation. As a result, the work represents an estimation of the resonant differential scattering cross-section in ratio to the scattering cross-section computed without the external field. In conclusion, various scientific facilities may verify the project data simulation (SLAC, FAIR, XFEL, ELI, XCELS).


2000 ◽  
Vol 61 (11) ◽  
pp. 7433-7439 ◽  
Author(s):  
S. Nakai ◽  
Y. Megawa ◽  
F. Terasaki ◽  
Chen Gang ◽  
T. Ohuchi ◽  
...  

2006 ◽  
Vol 129 (1) ◽  
pp. 11-16 ◽  
Author(s):  
F. Marquier ◽  
M. Laroche ◽  
R. Carminati ◽  
J.-J. Greffet

Thermal emission of a doped silicon grating has been studied in the plane perpendicular to the grooves. We show how the excitation of surface plasmons produce a resonant emission weakly depending on the polarization and azimuthal angle. We analyze in detail the polarization and angular dependence of the emission out of the plane perpendicular to the grooves. Two kinds of thermal sources, directional and quasi-isotropic, are studied. They have been designed in a previous paper. We also compute the total hemispherical emissivity of these gratings. In addition we show that in applications such as radiative cooling, these sources are less efficient than other structures.


2003 ◽  
Vol 195 (3) ◽  
pp. 579-586 ◽  
Author(s):  
A. Kavokin ◽  
G. Malpuech ◽  
P. G. Lagoudakis ◽  
J. J. Baumberg ◽  
K. Kavokin

2005 ◽  
Vol 95 (26) ◽  
Author(s):  
L. Braicovich ◽  
G. Ghiringhelli ◽  
A. Tagliaferri ◽  
G. van der Laan ◽  
E. Annese ◽  
...  

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