9 citations · 9 across the 5 of their papers we have counts for
5 papers
Spectroscopic Observations of Supra-Arcade Downflows
Ryan J. French, Maria D. Kazachenko, Teodora Mihailescu +1
Despite their somewhat-frequent appearance in EUV imaging of off-limb flares, the origins of Supra-Arcade Downflows (SADs) remain a mystery. Appearing as dark, tendril-like downflo…
Eagle Pass, TX: The First American City on the Path of Totality: Organizing Eclipse Party on the Stadium
Maria D. Kazachenko, Jorge Perez-Gallego, Jennifer Miller +13
In this paper we share the experience of the U.S. National Science Foundation (NSF) National Solar Observatory (NSO) scientists, educators and public outreach officers organizing a…
X-ray and Spectral UV Observations of Periodic Pulsations in a Solar Flare Fan/Looptop
Ryan J. French, Laura A. Hayes, Maria D. Kazachenko +3
We present simultaneous X-ray and spectral ultraviolet (UV) observations of strikingly-coherent oscillations in emission from a coronal looptop and fan structure, during the impuls…
Doppler Signature of a Possible Termination Shock in an Off-Limb Solar Flare
Ryan J. French, Sijie Yu, Bin Chen +2
We report striking Doppler velocity gradients observed during the well-observed September 10th 2017 solar flare, and argue that they are consistent with the presence of an above-th…
First Observation of Chromospheric Waves in a Sunspot by DKIST/ViSP: The Anatomy of an Umbral Flash
Ryan J. French, Thomas J. Bogdan, Roberto Casini +2
The Visible Spectro-Polarimeter (ViSP) of the NSF Daniel K. Inouye Solar Telescope (DKIST) collected its Science Verification data on May 7-8, 2021. The instrument observed multipl…