Interchange reconnection between an active region and a coronal hole

With data from the Atmospheric Imaging Assembly and the Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory, we present a mag- netic interaction between an isolated coronal hole (CH) and an emerging active re- gion (AR). The AR emerged nearby the CH and interacted with it. Bright...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Research in astronomy and astrophysics 2014-02, Vol.14 (2), p.221-228
Hauptverfasser: Ma, Lin, Qu, Zhong-Quan, Yan, Xiao-Li, Xue, Zhi-Ke
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:With data from the Atmospheric Imaging Assembly and the Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory, we present a mag- netic interaction between an isolated coronal hole (CH) and an emerging active re- gion (AR). The AR emerged nearby the CH and interacted with it. Bright loops con- stantly formed between them, which led to a continuous retreat of the CH boundaries (CHBs). Meanwhile, two coronal dimmings respectively appeared at the negative po- laxity of the AR and the east boundary of the bright loops, and the AR was partly disturbed. Loop eruptions followed by a flare occurred in the AR. The interaction was also accompanied by many jets and an arc-shaped brightening that appeared to be observational signatures of magnetic reconnection at the CHBs. By comparing the observations with the derived coronal magnetic configuration, it is suggested that the interaction between the CH and the AR excellently agreed with the model of inter- change reconnection. It appears that our observations provide obvious evidence for interchange reconnection.
ISSN:1674-4527
2397-6209
DOI:10.1088/1674-4527/14/2/009