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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effects of radiation pressure and polarization force on Jeans instability in magnetized strongly coupled dusty plasma
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Effects of radiation pressure and polarization force on Jeans instability in magnetized strongly coupled dusty plasma

机译：辐射压力和偏振力对磁化强耦合粉尘等离子体牛仔裤不稳定性的影响

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摘要

The combined effects of radiation pressure and polarization force on the linear Jeans instability of magnetized strongly coupled dusty plasma are studied using the generalized hydrodynamic fluid model. The electron and ion fluids are assumed to be inertialess and their thermal radiation pressures including gas pressures is considered in the single fluid momentum transfer equation of strongly coupled dusty fluid. The general dispersion relation is derived using normal mode analysis and discussed for transverse and longitudinal modes in both the strongly coupled and weakly coupled plasmas. The Jeans instability criterion determines the instability of the system which is significantly modified by radiation pressure and viscoelastic effects. The stabilizing influence of the Coulomb coupling parameter, dust radiation velocity and viscoelastic coefficients on the growth rates of Jeans instability is observed. The different velocities, Jeans wavenumber and Jeans mass have been calculated in the dust molecular cloud and the astrophysical consequences of the results are discussed.
机译：使用广义流体动力流体模型研究了辐射压力和偏振力对线性牛仔裤的磁性牛仔裤不稳定性的影响。假设电子和离子流体是惯性症，并且它们的热辐射压力包括气压的热辐射压力是在强耦合的粉尘流体的单一流体动量传递方程中。使用正常模式分析来导出一般色散关系，并在强耦合和弱耦合的等离子体中讨论横向和纵向模式。牛仔裤不稳定性标准决定了系统的不稳定性，通过辐射压力和粘弹性效应显着改变。观察到对库仑耦合参数，灰尘辐射速度和粘弹性系数对牛仔裤不稳定性的生长速率的稳定影响。已经在灰尘分子云中计算了不同的速度，牛仔裤波数和牛仔裤肿块，并讨论了结果的天体物理后果。

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