SOLAR ROTATION EFFECTS ON THE HELIOSHEATH FLOW NEAR SOLAR MINIMA
SOLAR ROTATION EFFECTS ON THE HELIOSHEATH FLOW NEAR SOLAR MINIMA
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DOI：
10.1088/0004-637x/750/1/42
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发表时间：
2012-05-01
影响因子：
4.9
通讯作者：
Ebert, Robert W.
中科院分区：
文献类型：
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作者：
Borovikov, Sergey N.;Pogorelov, Nikolai V.;Ebert, Robert W.
由于太阳的旋转，快慢太阳风（SW）之间的相互作用产生了旋转相互作用区（CIRs），它们进一步相互作用，在大的日球层距离上产生复杂的等离子体结构。我们研究了在日球终止激波（TS）和日球层顶之间，CIRs对内日鞘内SW流的全球影响。流相互作用模式考虑了太阳极小期附近慢速流相互作用引起的主要全球效应。快风和慢风参数来源于尤利西斯号的观测。我们研究了旋转结构通过TS的穿透以及它们在日鞘中的进一步传播。这表明日鞘流结构可能经历了实质性的改变，包括旅行者1号观测到的径向速度成分的局部减少。
The interaction between fast and slow solar wind (SW) due to the Sun's rotation creates corotating interaction regions (CIRs), which further interact with each other creating complex plasma structures at large heliospheric distances. We investigate the global influence of CIRs on the SW flow in the inner heliosheath between the heliospheric termination shock (TS) and the heliopause. The stream interaction model takes into account the major global effects due to slow-fast stream interaction near solar minima. The fast and slow wind parameters are derived from the Ulysses observations. We investigate the penetration of corotating structures through the TS and their further propagation through the heliosheath. It is shown that the heliosheath flow structure may experience substantial modifications, including local decreases in the radial velocity component observed by Voyager 1.