论文标题
连接太阳能轨道遥感观测和Parker太阳能探测器原位测量值
Connecting Solar Orbiter remote-sensing observations and Parker Solar Probe in-situ measurements with a numerical MHD reconstruction of the Parker spiral
论文作者
论文摘要
作为关键特征,NASA的Parker太阳能探针(PSP)和ESA-NASA的太阳能轨道器(SO)任务配合了,以追踪太阳风,并从太阳上的源头到达内部星际空间。这项工作的目的是准确地重建行星际park螺旋螺旋,以及由Metis coronagraph上板上观察到的冠状特征与PSP在2021年1月第一个PSP-so the so situ检测到的冠状动脉特征之间的联系。帕克螺旋。 RIMAP使用PSP在0.1至0.2 au之间收集的测量值作为边界条件求解赤道平面上的MHD方程。我们的重建将METIS(3-6太阳半径)提供的密度和风速测量连接到PSP(21.5太阳半径)沿单个流线所获得的密度和风速测量。我们的MHD模型连接由METIS观察到的内部电动的能力和PSP测量的超级抗体风,不仅证实了由多机天桥的观察结果提供的研究途径,还确认了RIMAP重建的有效性和准确性,还可以作为跨螺旋溶液的跨螺旋式溶液模型,例如验证螺旋脉的模型,例如验证螺旋式溶液的模型,例如风折。
As a key feature, NASA's Parker Solar Probe (PSP) and ESA-NASA's Solar Orbiter (SO) missions cooperate to trace solar wind and transients from their sources on the Sun to the inner interplanetary space. The goal of this work is to accurately reconstruct the interplanetary Parker spiral and the connection between coronal features observed remotely by the Metis coronagraph on-board SO and those detected in situ by PSP at the time of the first PSP-SO quadrature of January 2021. We use the Reverse In-situ and MHD Approach (RIMAP), a hybrid analytical-numerical method performing data-driven reconstructions of the Parker spiral. RIMAP solves the MHD equations on the equatorial plane with the PLUTO code, using the measurements collected by PSP between 0.1 and 0.2 AU as boundary conditions. Our reconstruction connects density and wind speed measurements provided by Metis (3-6 solar radii) to those acquired by PSP (21.5 solar radii) along a single streamline. The capability of our MHD model to connect the inner corona observed by Metis and the super Alfvénic wind measured by PSP, not only confirms the research pathways provided by multi-spacecraft observations, but also the validity and accuracy of RIMAP reconstructions as a possible test bench to verify models of transient phenomena propagating across the heliosphere, such as coronal mass ejections, solar energetic particles and solar wind switchbacks.