Magnetic Outbreak Associated with Exploding Granulations
Magnetic Outbreak Associated with Exploding Granulations
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DOI：
10.3847/2041-8213/aca97c
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发表时间：
2022-12
期刊：
影响因子：
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通讯作者：
C. Jin;Guiping Zhou;G. Ruan;T. Baildon;W. Cao;Jingxiu Wang
中科院分区：
文献类型：
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作者：
C. Jin;Guiping Zhou;G. Ruan;T. Baildon;W. Cao;Jingxiu Wang
诊断太阳上磁通量的时空模式对于理解太阳磁性和活动的起源至关重要。在这里，我们报告了一种新形式的通量外观，磁爆发，使用大熊太阳天文台1.6米古德太阳望远镜的极高空间分辨率为0.16的观测。磁爆发是指单极磁通量的早期增长和后来的爆炸成碎片，与等离子体上升流和爆炸颗粒有关;每个碎片的通量为1016 - 1017 Mx，以0.5 - 2.2 km s − 1的速度移动。磁爆发发生在孔沟的百高斯区域。在这项研究中，我们确定了6个事件的磁爆发在6小时的观测超过一个约40 ″ × 40 ″的视野。新发现的磁场爆发可能是人们期待已久的对流爆发的第一个证据。
Diagnosing the spatiotemporal pattern of magnetic flux on the Sun is vital for understanding the origin of solar magnetism and activity. Here, we report a new form of flux appearance, magnetic outbreak, using observations with an extremely high spatial resolution of 0.″16 from the 1.6 m Goode Solar Telescope at the Big Bear Solar Observatory. Magnetic outbreak refers to an early growth of unipolar magnetic flux and its later explosion into fragments, in association with plasma upflow and exploding granulations; each individual fragment has flux of 1016–1017 Mx, moving apart with a velocity of 0.5–2.2 km s−1. The magnetic outbreak takes place in the hecto-Gauss region of pore moats. In this study, we identify six events of magnetic outbreak during 6 hr observations over an approximately 40″ × 40″ field of view. The newly discovered magnetic outbreak might be the first evidence of the long-anticipated convective blowup.