Chromospheric horizontal propagating shock waves revealed by fast cadence imaging in Ca II K with DKIST's Visible Broadband Imager
Additional information
Authors
Fischer C.,
Woeger F.,
Rimmele T.,
Keys P.,
Steiner O.,
Gangadharan V.,
Jafarzadeh S.,
Canivete Cuissa J. R.
Type
Article in conference proceedings
Year
2023
Language
English
Abstract
The Daniel K. Inouye Solar Telescope is currently acquiring firstscience data as part of its Operations Commissioning Phase.High-resolution, fast-cadence imaging in the chromospheric Ca IIK filter of the Visible Broadband Imager reveals signatures ofbright arches emanating radially from the locations of G-bandbright points. The G-band bright points denote small-scalemagnetic elements harboring strong magnetic fields. Comparisonwith 3-D simulations suggest that the traveling bright archesare acoustic waves or shock fronts, triggered by the movementsof magnetic elements. Inspecting several examples of the eventswe indeed see the photospheric bright points changing theirappearance and position, indicating either a horizontalmovement, perhaps swaying, or rotation and seem to be the sourcelocation for the bright arches.
Conference proceedings
AAS/Solar Physics Division Meeting
Series
AAS/Solar Physics Division Meeting
Start page number
407.03-
