E-Print Archive

There are 3977 abstracts currently viewable.


Advanced Search
Main Page Add New E-Print Submitter
News Help/FAQ About Preferences
Manage Key Phrase
Magnetic-Reconnection Generated Shock Waves as a Driver of Surges  

Heesu Yang   Submitted: 2014-04-21 11:07

We found that a surge consists of multiple shock features. In our high spatio-temporal spectroscopic observation of the surge using Fast Imaging Solar Spectrograph of the 1.6 meter New Solar Telescope at Big Bear Solar Observatory, each shock is identified with the sudden appearance of an absorption feature at the blue wings of the Ca II 8542 Å line and Hα line that gradually shifts to the red wings. The shock features are overlapped with one another with an time interval of 110 s, which is much shorter than the duration of each shock feature 300 - 400 s. This finding suggests that the multiple shocks may not have been originated from a train of sinusoidal waves generated by oscillations and flows in the photosphere. As we found the signature of the magnetic flux cancellations at the base of the surge, we conclude that the multiple shock waves in charge of the surge were generated by the magnetic reconnection in the low atmosphere associated with the flux cancellation.

Authors: Heesu Yang, Jongchul Chae , Eun-Kyung Lim, Kyoung-Sun Lee , Hyungmin Park , Dong-uk Song , Kyuhyoun Cho
Projects: None

Publication Status: ApJ Letter (submitted)
Last Modified: 2014-04-23 09:01
Go to main E-Print page  Edit Entry  Download Preprint  Submitter's Homepage Delete Entry 

Go to main E-Print pageGo to main E-Print page.
Download PreprintDownload Preprint.
Submitter's HomepageSubmitters Homepage.
Edit EntryEdit Entry.
Delete AbstractDelete abstract.

Abstracts by Author
Magnetic-Reconnection Generated Shock Waves as a Driver of Surges

Related Pages
MSU Solar Physics.
Max Millennium Science Mail Archive.
Max Millennium Message of the Day Mail Archive.
Max Millennium Flare Catalog

Archive Maintainer
Alisdair Davey

© 2003 Solar Physics Group - Montana State University