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首页> 外文期刊>Space Science Reviews >The Galactic Environment of the Sun: Interstellar Material Inside and Outside of the Heliosphere
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The Galactic Environment of the Sun: Interstellar Material Inside and Outside of the Heliosphere

机译：太阳的银河环境：太阳圈内外的星际物质

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摘要

Interstellar material (ISMa) is observed both inside and outside of the heliosphere. Relating these diverse sets of ISMa data provides a richer understanding of both the interstellar medium and the heliosphere. The galactic environment of the Sun is dominated by warm, low-density, partially ionized interstellar material consisting of atoms and dust grains. The properties of the heliosphere are dependent on the pressure, composition, radiation field, ionization, and magnetic field of ambient ISMa. The very low-density interior of the Local Bubble, combined with an expanding superbubble shell associated with star formation in the Scorpius-Centaurus Association, dominate the properties of the local interstellar medium (LISM). Once the heliosphere boundaries and interaction mechanisms are understood, interstellar gas, dust, pickup ions, and anomalous cosmic rays inside of the heliosphere can be directly compared to ISMa outside of the heliosphere. Our understanding of ISMa at the Sun is further enriched when the circumheliospheric interstellar material is compared to observations of other nearby ISMa and the overall context of our galactic environment. The IBEX mission will map the interaction region between the heliosphere and ISMa, and improve the accuracy of comparisons between ISMa inside and outside the heliosphere. Keywords Interstellar material - Heliosphere - Local bubble
机译：在日球内部和外部都观测到星际物质（ISMa）。将这些不同的ISMa数据集联系起来，可以更好地理解星际介质和日球层。太阳的银河环境主要是由原子和尘埃颗粒组成的温暖，低密度，部分电离的星际物质所主导。日光层的性质取决于周围ISMa的压力，组成，辐射场，电离和磁场。局部气泡的内部密度非常低，再加上与天蝎座-半人马星座的恒星形成相关的膨胀的超气泡壳，主导了局部星际介质（LISM）的属性。一旦了解了太阳圈的边界和相互作用机制，就可以将太阳圈内部的星际气体，尘埃，吸收离子和异常宇宙射线直接与太阳圈外部的ISMa进行比较。将周旋层星际物质与附近其他ISMa的观测结果以及我们银河环境的整体情况进行比较，将进一步丰富我们对太阳ISMA的理解。 IBEX任务将绘制日球层与ISMa之间的相互作用区域，并提高日球层内外ISMA之间比较的准确性。关键词星际物质-日球-局部气泡

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