First Observation of Chromospheric Waves in a Sunspot by DKIST/ViSP: The Anatomy of an Umbral Flash

First Observation of Chromospheric Waves in a Sunspot by DKIST/ViSP: The Anatomy of an Umbral Flash

The Visible Spectro-Polarimeter of the NSF Daniel K. Inouye Solar Telescope collected its Science Verification data on 2021 May 7–8. The instrument observed multiple layers of a sunspot atmosphere simultaneously, in passbands of Ca ii 397 nm (H line), Fe i 630 nm, and Ca ii 854 nm, scanning the regi...

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Bibliographic Details
Main Authors:	Ryan J. French, Thomas J. Bogdan, Roberto Casini, Alfred G. de Wijn, Philip G. Judge
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Series:	The Astrophysical Journal Letters
Subjects:	Active solar chromosphere Solar chromosphere Shocks Solar oscillations Sunspots Solar active region magnetic fields
Online Access:	https://doi.org/10.3847/2041-8213/acb8b5

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