Non-thermal shielding effects on the Compton scattering power in astrophysical plasmas

Shin, Dong‐Soo; Jung, Young-Dae

doi:10.1016/j.astropartphys.2015.03.012

Astroparticle Physics

2015

DOI: 10.1016/j.astropartphys.2015.03.012

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Non-thermal shielding effects on the Compton scattering power in astrophysical plasmas

Dong‐Soo Shin

Young-Dae Jung

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Cited by 2 publications

References 21 publications

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Inverse Compton power and cooling time in a quantum Fermi-Dirac plasma including the quantum degeneracy pressure

Lee

Jung

2016

Physics of Plasmas

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The inverse Compton power is investigated in relativistically degenerate quantum Fermi-Dirac plasmas including the influence of quantum statistical degeneracy pressure. The ordinary and double Compton scattering cross sections, the inverse Compton power, and the cooling time are obtained in Fermi-Dirac plasmas. It is shown that the differential Compton scattering cross section has a maximum at the small wave number domain. However, the differential Compton scattering cross section increases with an increase of the wave number in the case of a large relativistic degeneracy parameter. It is interesting to note that the differential Compton scattering cross section in the backward scattering region is greater than that in the forward scattering region when the degeneracy pressure is large. It is also shown that the double Compton scattering process is quite suppressed in the forward scattering domain. It is also shown that the inverse Compton power increases with an increase of the relativistic degeneracy parameter. It is also shown that the influence of the relativistic degeneracy on the inverse Compton power is more significant for small plasmon energies. In addition, it is found that the cooling time due to the inverse Compton process decreases with an increase of the relativistic degeneracy parameter.

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Inverse Compton power and cooling time in a quantum Fermi-Dirac plasma including the quantum degeneracy pressure

Lee

Jung

2016

Physics of Plasmas

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Characteristics of ion-cyclotron surface waves in semi-bounded (r, q) distribution dusty plasmas

2018

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The influence of magnetic field strength, ion mass, and the non-thermal character on the dispersion properties of ion-cyclotron surface wave is investigated in a semi-bounded (r, q) distribution dusty plasma. In the limit of short wave number, the dispersion relation is derived by adopting the specular reflection boundary condition and the effective screening distance in (r, q) distribution dusty plasma. It is found that the stronger magnetic field strength suppresses the wave speed, but the heavier ions will enhance the wave propagation. To investigate the wave propagation in the non-Maxwellian plasma, the typical values of r and q are chosen and the dispersion relation is plotted to obtain the general character of wave propagation. The result would reduce to the case of Maxwellian plasma for r→0 and q→∞.

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Non-thermal shielding effects on the Compton scattering power in astrophysical plasmas

Cited by 2 publications

References 21 publications

Inverse Compton power and cooling time in a quantum Fermi-Dirac plasma including the quantum degeneracy pressure

Inverse Compton power and cooling time in a quantum Fermi-Dirac plasma including the quantum degeneracy pressure

Characteristics of ion-cyclotron surface waves in semi-bounded (r, q) distribution dusty plasmas

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