A new mechanisms for damping of slow magnetosonic waves (SMW) by pressure induced oscillations of the ionization degree is proposed. An explicit formula for the damping rate is quantitatively derived. Physical conditions where the new mechanism will dominate are briefly discussed. The ionization-recombination damping is frequency independent and has no hydrodynamic interpretation. Roughly speaking large area of partially ionized plasma are damper for basses of SMW while usual MHD mechanisms operate as a low pass filter. The derived damping rate is proportional to the square of the sine between the constant magnetic field and the wave-vector. Angular distribution of the spectral density of SMW and Alfven waves (AW) created by turbulent regions and passing through large regions of partially ionized plasma is qualitatively considered. The calculated damping rate is expressed by the electron impact cross section of the hydrogen atom and in short all details of the proposed damping mechanisms are well studied.

中文翻译：

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通过压力诱导电离-复合耗散缓慢吸收磁声波

提出了一种通过电离度的压力感应振荡来阻尼慢磁声波 (SMW) 的新机制。阻尼率的明确公式是定量导出的。简要讨论了新机制将占主导地位的物理条件。电离-复合阻尼与频率无关，没有流体动力学解释。粗略地说，大面积的部分电离等离子体是 SMW 低音的阻尼器，而通常的 MHD 机制作为低通滤波器运行。导出的阻尼率与恒定磁场和波矢之间的正弦平方成正比。定性地考虑了由湍流区域产生并穿过大面积部分电离等离子体的 SMW 和阿尔文波 (AW) 的频谱密度的角分布。