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首页> 外文期刊>The Astrophysical journal >Solar Surface Emerging Flux Regions: A Comparative Study Of Radiative Mhd Modeling And Hinode Sot Observations
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Solar Surface Emerging Flux Regions: A Comparative Study Of Radiative Mhd Modeling And Hinode Sot Observations

机译：太阳表面新兴通量区域：辐射Mhd建模与Hinode Sot观测结果的比较研究

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摘要

We present results from numerical modeling of emerging flux regions on the solar surface. The modeling was carried out by means of three-dimensional (3D) radiative MHD simulations of the rise of buoyant magnetic flux tubes through the convection zone and into the photosphere. Due to the strong stratification of the convection zone, the rise results in a lateral expansion of the tube into a magnetic sheet, which acts as a reservoir for small-scale flux emergence events at the scale of granulation. The interaction of the convective downflows and the rising magnetic flux tube undulates it to form serpentine field lines that emerge into the photosphere. Observational characteristics, including the pattern of the emerging flux regions, the cancellation of surface flux and associated high-speed down-flows, the convective collapse of photospheric flux tubes, the appearance of anomalous darkenings, the formation of bright points, and the possible existence of transient kilogauss horizontal fields are discussed in the context of new observations from the Hinode Solar Optical Telescope. Implications for the local helioseismology of emerging flux regions are also discussed.
机译：我们目前从太阳表面上新兴通量区域的数值模拟结果。通过三维（3D）辐射MHD模拟浮力磁通管穿过对流区并进入光球的过程进行了建模。由于对流区的强烈分层，上升导致管子横向扩展成磁性薄板，该磁性薄板充当了造粒规模的小规模通量涌出事件的储存库。对流下降流和上升的磁通管的相互作用使它起伏，形成蜿蜒的场线，并进入光球。观测特征，包括新兴的通量区域的模式，表面通量的抵消和相关的高速向下流动，光球通量管的对流塌陷，异常变暗的出现，亮点的形成以及可能存在在Hinode太阳光学望远镜的新观测结果的背景下，讨论了瞬态千高斯水平场的变化。还讨论了对新兴通量区域的局部流变学的影响。

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