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首页> 外文期刊>The Astrophysical Journal. Letters >ON THE ROTATION OF THE MAGNETIC FIELD ACROSS THE HELIOPAUSE
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ON THE ROTATION OF THE MAGNETIC FIELD ACROSS THE HELIOPAUSE

机译：关于磁场横跨重温的旋转

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摘要

Based on the difference between the orientation of the interstellar and the solar magnetic fields, there was an expectation by the community that the magnetic field direction will rotate dramatically across the heliopause (HP). Recently, the Voyager team concluded that Voyager 1 (V1) crossed into interstellar space last year. The question is then why there was no significant rotation in the direction of the magnetic field across the HP. Here we present simulations that reveal that strong rotations in the direction of the magnetic field at the HP at the location of V1 (and Voyager 2) are not expected. The solar magnetic field strongly affects the drapping of the interstellar magnetic field (B_(ISM)) around the HP. B_(ISM) twists as it approaches the HP and acquires a strong T component (East-West). The strong increase in the T component occurs where the interstellar flow stagnates in front of the HP. At this same location the N component BN is significantly reduced. Above and below, the neighboring BISM lines also twist into the T direction. This behavior occurs for a wide range of orientations of B_(ISM). The angle δ = a sin(B_N/B) is small (around 10o-20o), as seen in the observations. Only after some significant distance outside the HP is the direction of the interstellar field distinguishably different from that of the Parker spiral.
机译：基于间隙和太阳能磁场的方向之间的差异，期望群体的磁场方向将横跨高速（HP）急剧旋转。最近，旅行者团队得出结论，去年的航行员1（v1）越过壁炉间空间。那么问题是为什么HP跨越磁场方向没有显着旋转。在这里，我们存在模拟，揭示不会期望在V1（和Voyager 2）的位置处的HP处的磁场方向上的强旋转。太阳磁场强烈影响恒生术中的星际磁场（B_（ISM））的扭转。 B_（ISM）扭曲，因为它接近惠力并获取强大的T组分（东西）。 T组分的强劲增加发生，其中星际流动在HP前面停滞。在此相同的位置，N个组分BN显着降低。在上下，邻近的Bism系也扭转到T方向上。对于B_（ISM）的广泛方向，发生此问题。角度δ= SIN（B_N / B）小（约10o-20o），如在观察中所见。只有在惠普外部的一些重要距离之后，才能与帕克兰螺旋形的方向区别称不同。

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