92 citations · 232 across the 37 of their papers we have counts for
38 papers
DEM analysis of the 6 September 2011 large-scale coronal wave
Amaia Razquin, Astrid M. Veronig, Karin Dissauer
Large-scale coronal waves are globally propagating intensity enhancements in extreme-ultraviolet (EUV) and soft X-ray (SXR) observations, associated with solar flares and coronal m…
Chromospheric magnetic field extrapolations reveal the flux-rope configuration of a solar filament
Robert Jarolim, João M. da Silva Santos, Matthias Rempel +5
Solar eruptions are powered by the release of magnetic energy stored in the lower solar atmosphere, but the pre-eruptive magnetic configuration of filament channels remains difficu…
Investigation of the Two-Dimensional Velocity Field of the Large-Scale Coronal Wave from September 6, 2011 using the SOLERwave Tool
Markus Baumgartner-Steinleitner, Astrid M. Veronig, Karin Dissauer +1
We investigate the two-dimensional velocity field of the fast and complex large-scale coronal wave observed on September 6, 2011. We use both a classical perturbation profile appro…
A single power law for the TRAPPIST-1 flare distribution across four orders of magnitude in energy
Valeriy Vasilyev, Alexander I. Shapiro, Nadiia Kostogryz +10
TRAPPIST-1 is an ultra-cool dwarf that flares frequently. These flares shape the surrounding planets' high-energy irradiation environments, with consequences for atmospheric chemis…
Multi-Viewpoint Observation of a Failed Prominence Eruption on the Sun
Tingyu Gou, Katharine K. Reeves, Peter R. Young +5
Solar eruptions are sudden ejections of coronal mass and magnetic fields accompanied by intense energy release. The eruptive structure does not always erupt successfully, but somet…
Magnetic flux systems involved in the May 2024 solar energetic events from AR 13664 inferred through coronal dimmings
Amaia Razquin, Karin Dissauer, Astrid M. Veronig +1
Coronal dimmings are transient depletions of coronal plasma observed in extreme ultraviolet and soft X-rays, interpreted as low-corona signatures of coronal mass ejections (CMEs).…
Neural blind deconvolution to reconstruct high-resolution ground-based solar observations
Christoph Schirninger, Robert Jarolim, Astrid M. Veronig +2
Ground-based solar observations enable unprecedented spatial, spectral, and temporal resolution of the lower solar atmosphere, yet Earths turbulent atmosphere imposes significant l…
Height and Energy Evolution of X-ray Double Sources in a Solar Flare
Hanya Pan, Astrid M. Veronig, Rui Liu
In the standard model, magnetic reconnection at a vertical current sheet above the flare arcade is key to explaining many aspects of solar eruptions. The supra-arcade region is whe…
Height-dependent thermal properties of extreme-ultraviolet campfires in the quiet Sun
O. Podladchikova, A. Warmuth, L. Harra +30
Small-scale impulsive energy-release events are widely considered a key ingredient of quiet-Sun coronal heating. We quantified the thermal-energy content of extreme-ultraviolet (EU…
Coronal mass ejection arrival forecasting with the drag-based assimilation of satellite observations
Zaina Abu-Shaar, Tatiana Podladchikova, Astrid M. Veronig +2
Forecasting the arrival of coronal mass ejections (CMEs) is vital for protecting satellites, power systems, and human spaceflight. We present HELIOPANDA: Heliospheric Observer for…
Image calibration between the Extreme Ultraviolet Imagers on Solar Orbiter and the Solar Dynamics Observatory
Christoph Schirninger, Robert Jarolim, Astrid M. Veronig +6
To study and monitor the Sun and its atmosphere, various space missions have been launched in the past decades. With the rapid improvement in technology and different mission requi…
Magnetic structure and asymmetric eruption of a 500 Mm filament rooted in weak-field regions
Stefan Purkhart, Astrid M. Veronig, Robert Jarolim +2
We performed a detailed analysis of the magnetic structure and asymmetric eruption of a large (about 500 Mm) inverse S-shaped filament partially located in AR 13229 on February 24,…
Flares on TRAPPIST-1 reveal the spectrum of magnetic features on its surface
Valeriy Vasilyev, Nadiia Kostogryz, Alexander I. Shapiro +11
TRAPPIST-1 is an M8 dwarf hosting seven known exoplanets and is currently one of the most frequently observed targets of the James Webb Space Telescope (JWST). However, it is notor…
Extreme ultraviolet late-phase flares as observed by EVE and AIA on board the Solar Dynamics Observatory
Sascha Ornig, Astrid M. Veronig, Karin Dissauer
Context. Extreme ultraviolet (EUV) late-phase (ELP) flares exhibit a second peak in warm coronal emissions minutes to hours after the main peak of the flare. This phase is all but…
Coronal dimmings from active region 13664 during the May 2024 solar energetic events
Amaia Razquin, Astrid M. Veronig, Karin Dissauer +2
Coronal dimmings are regions of transiently reduced brightness in extreme ultraviolet (EUV) and soft X-ray (SXR) emissions associated with coronal mass ejections (CMEs), providing…
Deep learning image burst stacking to reconstruct high-resolution ground-based solar observations
Christoph Schirninger, Robert Jarolim, Astrid M. Veronig +1
Large aperture ground based solar telescopes allow the solar atmosphere to be resolved in unprecedented detail. However, observations are limited by Earths turbulent atmosphere, re…
Spatiotemporal evolution of UV pulsations and their connection to 3D magnetic reconnection and particle acceleration
Stefan Purkhart, Hannah Collier, Laura A. Hayes +3
Quasi-periodic pulsations (QPPs) are a common feature of impulsive solar flare emissions, yet their driving mechanism(s) remain unresolved. We study long-period (3.4 min) QPPs in t…
Conditioning of the solar corona due to large flares
Julia K. Thalmann, Manu Gupta, Astrid M. Veronig +1
We aim to better characterize the conditions of the solar corona, especially with respect to the occurrence of confined and eruptive flares. In this work, we model the coronal evol…
Three-part structure of solar coronal mass ejection observed in low coronal signatures of Solar Orbiter
Tatiana Podladchikova, Shantanu Jain, Astrid M. Veronig +4
This study examines the relationship between early solar coronal mass ejection (CME) propagation, the associated filament eruption, and coronal dimming in the rare event observed o…
Detecting and sizing the Earth with PLATO: A feasibility study based on solar data
A. F. Krenn, M. Lendl, S. Sulis +8
Context. The PLAnetary Transits and Oscillations of stars (PLATO) mission will observe the same area of the sky continuously for at least two years in an effort to detect transit s…
Estimating early coronal mass ejection propagation direction with DIRECD during the severe May 8 and follow-up June 8, 2024 events
Shantanu Jain, Tatiana Podladchikova, Astrid M. Veronig +4
On May 8, 2024, solar active region 13664 produced an X-class flare, several M-class flares, and multiple Earth-directed Coronal Mass Ejections (CMEs). The initial CME caused coron…
The observational evidence that all microflares that accelerate electrons to high energies are rooted in sunspots
Andrea Francesco Battaglia, Säm Krucker, Astrid M. Veronig +6
In general, large solar flares are more efficient at accelerating high-energy electrons than microflares. Nonetheless, we sometimes observe microflares that accelerate electrons to…
Magnetic Field Evolution of the Solar Active Region 13664
Robert Jarolim, Astrid Veronig, Stefan Purkhart +2
On 2024 May 10/11, the strongest geomagnetic storm since November 2003 has occurred, with a peak Dst index of -412 nT. The storm was caused by NOAA Active Region (AR) 13664, which…
Revisiting Empirical Solar Energetic Particle Scaling Relations II. Coronal Mass Ejections
Athanasios Papaioannou, Konstantin Herbst, Tobias Ramm +2
Aims. The space radiation environment conditions and the maximum expected coronal mass ejection (CME) speed are being assessed through the investigation of scaling laws between the…