论文标题
是地球球，非常局部的星际培养基和局部空腔，处于压力平衡与银河系
Are the heliosphere, very local interstellar medium, and local cavity in pressure balance with Galactic gravity
论文作者
论文摘要
Voyager航天器正在提供直播外层外的物理特性的第一个原位测量。这些数据，以及来自IBEX和HST航天器的数据以及与这些数据一致的物理模型，现在可以对地球球和周围星际介质的压力进行关键测量。使用这些数据，我们在螺旋膜内外，周围的星际气体内以及周围的局部空腔中进行了首次全面调查，以确定每个区域的总压力是否相互平衡，并与星系施加的重力压力。我们在每个区域的互助总压力，包括热，非热，等离子体，RAM和磁性压力成分。一个重要的结果是动态（RAM）压力的作用。在螺旋桨处的总压力平衡只能维持内部动态压力的重大贡献。同样，外气球和原始的非常局部的ISM（VLISM）以及原始的VLISM和局部空腔之间的总压力平衡需要大量的动态压力贡献。
The Voyager spacecraft are providing the first in situ measurements of physical properties in the outer heliosphere beyond the heliopause. These data, together with data from the IBEX and HST spacecraft and physical models consistent with these data, now provide critical measurements of pressures in the heliosphere and surrounding interstellar medium. Using these data, we assemble the first comprehensive survey of total pressures inside and outside of the heliopause, in the interstellar gas surrounding the heliosphere, and in the surrounding Local Cavity to determine whether the total pressures in each region are in balance with each other and with the gravitational pressure exerted by the Galaxy. We inter-compare total pressures in each region that include thermal, non-thermal, plasma, ram, and magnetic pressure components. An important result is the role of dynamic (ram) pressure. Total pressure balance at the heliopause can only be maintained with a substantial contribution of dynamic pressure from inside. Also, total pressure balance between the outer heliosphere and pristine very local ISM (VLISM) and between the pristine VLISM and the Local Cavity requires large dynamic pressure contributions.
