Pair Equilibrium in a Relativistic Plasma with Magnetic Fields
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概要
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We investigate the influence of magnetic fields on the elctron-positron pair equilibrium in an optically thin relativistic plasma. We assume that the plasma is uniform and static with a qualitative features are similar to those of a plasma without magnetic fields; there exist two branches of solution for the pair density, and there exist the maximum value attainable of the electron temperature T_*≡kT_e/m_eC^2 for a given τ_N≡σ_TNR, where σ_T is the Thomson cross section, and the maximum τ_N allowable for a given T_*. With magnetic fields synchrotron-Compton process produces so many hard photons that pair creation rate of photon processes should increase. As a result the maximum values of T_* and τ_N decrease and the equilibrium pair density decreases (increases) for the higher (lower) branch solution. It is found that these effects are significant, even if the magnetic energy density is below the equipartition value by several orders of magnitude.
- 理論物理学刊行会の論文
- 1983-05-25
著者
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高原 文郎
阪大理
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KUSUNOSE Masaaki
Department of Physics, School of Science, Kwansei Gakuin University
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Kusunose Masaaki
Department Of Astronomy University Of Tokyo
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TAKAHARA Fumio
Nobeyama Radio Observatory, Tokyo Astronomical Observatory University of Tokyo
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Takahara Fumio
Nobeyama Radio Observatory Tokyo Astronomical Observatory University Of Tokyo
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KUSUNOSE Masaaki
Department of Physics, Kwansei Gakuin University
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