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Characterizing motion types of G-band bright points in the quiet Sun

Feng, Song; Wang, Feng; Deng, Hui +4 more

We study the motion of G-band bright points (GBPs) in the quiet Sun to obtain the characteristics of different motion types. A high resolution image sequence taken with the Hinode/Solar Optical Telescope (SOT) is used, and GBPs are automatically tracked by segmenting 3D evolutional structures in a space-time cube. After putting the GBPs that do no…

Propagating disturbances along fan-like coronal loops in an active region

Teriaca, Luca; Krishna Prasad, S.; Banerjee, Dipankar +2 more

Propagating disturbances are often observed in active region fan-like coronal loops. They were thought to be due to slow mode magnetohydrodynamic waves based on some of the observed properties. However, recent studies involving spectroscopy indicate that they could be due to high speed quasi-periodic upflows which are difficult to distinguish from…

Development of technique to detect and classify small-scale magnetic flux cancellation and rapid blue-shifted excursions

Liu, Chang; Jing, Ju; Wang, Haimin +5 more

We present a set of tools for detecting small-scale solar magnetic cancellations and the disk counterpart of type II spicules (the so-called Rapid Blueshifted Excursions (RBEs)), using line-of-sight photospheric magnetograms and chromospheric spectroscopic observations, respectively. For tracking magnetic cancellation, we improve the Southwest Aut…