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High-resolution Spectroscopic Imaging of Counter-streaming Motions in Solar Active Region Magnetic Loops

  • Authors: Xu Yang, Wenda Cao, Haisheng Ji, Parida Hashim, and Jinhua Shen

2019 The Astrophysical Journal Letters 881 L25.

  • Provider: AAS Journals

Caption: Figure 2.

Flow maps created with He I 10830 and Hα off-band observations. Top panels: mass flow maps constructed with He I 10830 ± 0.4 Å data sets. Bottom panels: mass flow maps constructed with Hα −0.8 Å and +0.4 Å data sets. The flow maps are derived with the LCT method. The animation illustrates the counter-streaming patterns in the He I 10830 and Hα off-band observations. The animation also shows the AIA 304 Å (top-right panel) and AIA 171 Å (bottom-right panel) sequence. All of the panels in the animation begin around 20:20 UT and end after 20:44 UT. The video duration is 8 s.

(An animation of this figure is available.)

The video/animation of this figure is available in the online journal.

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