Asymptotic Behavior of Spectral Energy Distribution Function of Equilibrium Radiation in Maxwell Plasma at Low Frequencies


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Abstract

The low-frequency asymptotic behavior of the spectral distribution density of equilibrium radiation in collisionless non-degenerate electron plasma is studied. It is shown that the consideration of the spatial dispersion in the electron gas permittivity leads to a logarithmic singularity in the spectral distribution density at low frequencies. In this case, the total radiation energy remains finite. The results of the analytical consideration are identical to numerical calculations.

About the authors

S. A. Maslov

Joint Institute for High Temperatures; Moscow State University

Email: satron@mail.ru
Russian Federation, ul. Izhorskaya 13/19, Moscow, 125412; Moscow, 119991

S. A. Trigger

Joint Institute for High Temperatures; Prokhorov General Physics Institute

Author for correspondence.
Email: satron@mail.ru
Russian Federation, ul. Izhorskaya 13/19, Moscow, 125412; ul. Vavilova 38, Moscow, 119991

N. G. Goussein-zade

Prokhorov General Physics Institute

Email: satron@mail.ru
Russian Federation, ul. Vavilova 38, Moscow, 119991

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