Multi-channel observations of plasma outflows and the associated small-scale magnetic field cancellations on the edges of an active region |
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Authors: | S Liu J T Su |
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Institution: | 1. National Astronomical Observatory and Key Laboratory of Solar Activity, Chinese Academy of Sciences, Beijing, 100012, China 2. State Key Laboratory of Space Weather, Chinese Academy of Sciences, Beijing, 100190, China
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Abstract: | With the SDO/AIA instrument, continuous and intermittent plasma outflows are observed on the boundaries of an active region along two distinct open coronal loops. By investigating the temporal sequence magnetograms obtained from HMI/SDO, it is found that a small-scale magnetic reconnection probably plays an important role in the generation of the plasma outflows in the coronal loops. It is found that the origin of the plasma outflows coincides with the locations of the small-scale magnetic fields with mixed polarities, which suggests that the plasma outflows along coronal loops probably results from the magnetic reconnection between the small-scale closed emerging loops and the large-scale open active region coronal loops. |
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