Integral field spectroscopy of Na I D1/D2 lines reveals standing ~5.5 mHz oscillations at a sunspot umbral center indicating resonance-cavity dynamics, with propagating modes and damping at the boundary.
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R., Warner, M., Keil, S
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DKIST VBI observations identify 30 spicule events triggered by microfilaments as small as 0.17 Mm, revealing two morphological classes and occasional twisting motions.
A new source alignment technique applied to PSP and SO data reveals the solar wind speed increases by an average of 45% per radial decade between the spacecraft, indicating ongoing acceleration beyond 15 solar radii.
DKIST observations identify four-lobed Stokes U profiles as a potential signature of line-of-sight magnetic azimuth variation in sunspot penumbrae.
An automated detection method applied to simulated flare ribbon data identifies fine structures whose motions and flux distribution are consistent with plasmoid-mediated reconnection.
In the 2022 March 31 solar flare, hard X-ray QPPs correlate with UV pulsations in stationary ribbon regions tied to a specific loop system in a large-scale 3D reconnection structure, while slipping kernels experience weaker non-thermal energization.
K-means clustering of NICOLE inversions on DKIST/ViSP observations shows temperature dropping ~1000 K along fibrils from footpoints to mid-axis, abrupt lateral changes of hundreds of K, and denser fibrils associated with cooler downflowing plasma.
Multi-height Hα observations of a sunspot reveal standing and propagating slow magnetoacoustic waves whose phase relations support a non-ideal chromospheric acoustic resonator model.
Simulations find vortex regions exhibit higher temperatures and faster shock upflows, indicating they boost magnetoacoustic wave dissipation in the chromosphere.
Optimal wavelength strategies for DKIST/VTF enable detection of local acoustic source wavefronts from solar simulations.
Overview paper introducing the Sunrise III balloon-borne solar observatory, its 2024 flight, data volume, and the focus issue containing first scientific results.
citing papers explorer
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Standing oscillations in a resonant sunspot atmosphere captured by integral field spectroscopy
Integral field spectroscopy of Na I D1/D2 lines reveals standing ~5.5 mHz oscillations at a sunspot umbral center indicating resonance-cavity dynamics, with propagating modes and damping at the boundary.
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Observational Evidence of Solar Spicules Associated with Microfilament Eruptions Using DKIST
DKIST VBI observations identify 30 spicule events triggered by microfilaments as small as 0.17 Mm, revealing two morphological classes and occasional twisting motions.
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DKIST Unveils Four-Lobed Stokes U Profiles in a Magnetically Complex Sunspot Penumbra
DKIST observations identify four-lobed Stokes U profiles as a potential signature of line-of-sight magnetic azimuth variation in sunspot penumbrae.
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Automatic detection of Flare Ribbon Fine Structures as Proxies for Plasmoid Dynamics in Flare Reconnection
An automated detection method applied to simulated flare ribbon data identifies fine structures whose motions and flux distribution are consistent with plasmoid-mediated reconnection.
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Quasi-periodic pulsations and three-dimensional magnetic reconnection during 2022 March 31 flare observed by IRIS & STIX
In the 2022 March 31 solar flare, hard X-ray QPPs correlate with UV pulsations in stationary ribbon regions tied to a specific loop system in a large-scale 3D reconnection structure, while slipping kernels experience weaker non-thermal energization.
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Temperature Diagnostics of Chromospheric Fibrils using DKIST/ViSP Observations: K-Means Clustering Approach
K-means clustering of NICOLE inversions on DKIST/ViSP observations shows temperature dropping ~1000 K along fibrils from footpoints to mid-axis, abrupt lateral changes of hundreds of K, and denser fibrils associated with cooler downflowing plasma.
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Chromospheric resonator model for sunspot revealed by multi-height observation of umbral wave
Multi-height Hα observations of a sunspot reveal standing and propagating slow magnetoacoustic waves whose phase relations support a non-ideal chromospheric acoustic resonator model.
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Solar Vortices: Catalysts of Magnetoacoustic Wave Dissipation and Atmospheric Heating
Simulations find vortex regions exhibit higher temperatures and faster shock upflows, indicating they boost magnetoacoustic wave dissipation in the chromosphere.
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Assessment of DKIST/VTF Capabilities for the Detection of Local Acoustic Source Wavefronts
Optimal wavelength strategies for DKIST/VTF enable detection of local acoustic source wavefronts from solar simulations.
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Sunrise III: Instrument, mission, data, and first results
Overview paper introducing the Sunrise III balloon-borne solar observatory, its 2024 flight, data volume, and the focus issue containing first scientific results.