96 citations · 210 across the 26 of their papers we have counts for
26 papers
Tracing magnetic flux rope footpoints in AR 12975 with coronal dimmings and data-driven magnetofrictional simulations
Andreas Wagner, Amaia Razquin, Astrid M. Veronig +3
Coronal mass ejections (CMEs) are driven by the eruption of magnetic flux ropes (MFRs) whose footpoints are often observed indirectly as coronal dimming regions. However, the relat…
Solar Soft X-ray Coronal Dimming in a Failed Eruption Associated with Plasma Cooling
Xinyue Wang, Astrid M. Veronig, Hechao Chen +1
Coronal dimmings are observed as sudden and localized reductions in the extreme-ultraviolet and X-ray emission of the solar corona. Traditionally, significant dimmings of spectral…
Participation, selection and indicative bidding in auctions with costly entry
Changxia Ke, Greg Kubitz, Yang Liu
We study auctions with costly entry in which bidders have incomplete information about their affiliated private valuations prior to entry. We examine whether indicative bidding--a…
The DIRECD coronal mass ejection direction catalog: three-dimensional propagation inferred from coronal dimmings
Shantanu Jain, Tatiana Podladchikova, Karin Dissauer +2
Coronal mass ejections (CMEs) are among the primary drivers of space weather disturbances at Earth, yet their early propagation in the low corona remains poorly constrained owing t…
ESCAPE: a small explorer mission to study the stellar drivers of exoplanet evolution
Allison Youngblood, Kevin France, Brian Fleming +37
The long-term stability of exoplanetary atmospheres depends critically on the extreme-ultraviolet (EUV) photon and high-energy particle fluxes from the host star, which are poorly…
Stellar Forcing of (exo)Planetary Environments
Julián D. Alvarado-Gómez, Erika Palmerio, Manuel Güdel +13
The environments of exoplanets are fundamentally shaped by the magnetic activity of their host stars through radiative, plasma, and particle-driven processes. This article presents…
Investigating potential benefits of future sub-L1 missions with STEREO-A
Eva Weiler, Emma E. Davies, Christian Möstl +4
We present the first statistical study of geomagnetic storm forecasting using in situ data from the STEREO-A spacecraft as a sub-L1 monitor. Between November 2022 and June 2024, ST…
Molecular hydrogen controls the temperatures of flares on TRAPPIST-1
Alexander I. Shapiro Nadiia Kostogryz Sara Seager Veronika Witzke Julien de Wit Valeriy Vasilyev Astrid M. Veronig Robert Cameron Hardi Peter Sami K. Solanki
Early JWST observations of TRAPPIST-1 have revealed an unexpected puzzle: energetic white-light flares ( erg) reach temperatures of only 3500--4000\,K, ne…
New Bulgarian-Austrian project 'Joint observations and investigations of solar chromospheric and coronal activity'
Rositsa Miteva, Werner Pötzi, Astrid Veronig +9
We present the bilateral collaboration between Bulgarian and Austrian solar and space weather researchers on the topic of chromospheric and coronal activity. This new project will…
The Exospace Weather Frontier
R. O. Parke Loyd, Evgenya L. Shkolnik, Joseph Lazio +26
Space weather is among the most powerful and least understood forces shaping planetary atmospheres. In our Solar System, we observe its effects directly: atmospheric escape, chemic…
An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
Ivana Poljancic Beljan, Luka Sibenik, Tomislav Jurkic +7
We study solar differential rotation (DR) for solar cycle No. 19 (1954-1964) by tracing sunspot groups on the sunspot drawings of Kanzelhoehe Observatory for Solar and Environmenta…
Validating DIRECD: Statistical Evaluation of Coronal Mass Ejections Direction Estimates from Coronal Dimmings
Shantanu Jain, Tatiana Podladchikova, Karin Dissauer +2
Coronal mass ejections (CMEs) are among the most energetic phenomena in our solar system, with significant implications for space weather. Understanding their early dynamics remain…
Detecting Stellar Coronal Mass Ejections via Coronal Dimming in the Extreme Ultraviolet
James Paul Mason, Allison Youngblood, Kevin France +2
Stellar flares and coronal mass ejections (CMEs) can strip planetary atmospheres, reducing the potential habitability of terrestrial planets. While flares have been observed for de…
Coronal dimmings and what they tell us about solar and stellar coronal mass ejections
Astrid M. Veronig, Karin Dissauer, Bernhard Kliem +10
Coronal dimmings associated with coronal mass ejections (CME) from the Sun have gained much attention since the late 1990s when they were first observed in high-cadence imagery of…
Solar flares in the Solar Orbiter era: Short-exposure EUI/FSI observations of STIX flares
Hannah Collier, Laura A. Hayes, Stefan Purkhart +10
Aims: This paper aims to demonstrate the importance of short-exposure extreme ultraviolet (EUV) observations of solar flares in the study of particle acceleration, heating and ener…
First observations of a geomagnetic superstorm with a sub-L1 monitor
Eva Weiler, Christian Möstl, Emma E. Davies +10
Forecasting the geomagnetic effects of solar coronal mass ejections (CMEs) is currently an unsolved problem. CMEs, responsible for the largest values of the north-south component o…
Recovery of coronal dimmings
Giulia M. Ronca, Galina Chikunova, Karin Dissauer +2
Coronal dimmings are regions of reduced emission in the lower corona, observed after coronal mass ejections (CMEs) and representing their footprints. In order to investigate the lo…
High-resolution Observation of Blowout Jets Regulated by Sunspot Rotation
Tingyu Gou, Rui Liu, Yang Su +4
Coronal jets are believed to be the miniature version of large-scale solar eruptions. In particular, the eruption of a mini-filament inside the base arch is suggested to be the tri…
Sun-as-a-star observations of obscuration dimmings caused by filament eruptions
Yu Xu, Hui Tian, Astrid M. Veronig +1
Filament eruptions often lead to coronal mass ejections (CMEs) on the Sun and are one of the most energetic eruptive phenomena in the atmospheres of other late-type stars. However,…
A Universal Method for Solar Filament Detection from H-alpha Observations using Semi-supervised Deep Learning
Andrea Diercke, Robert Jarolim, Christoph Kuckein +7
Filaments are omnipresent features in the solar atmosphere. Their location, properties and time evolution can provide information about changes in solar activity and assist the ope…
A Modelling Investigation for Solar Flare X-ray Stereoscopy with Solar Orbiter/STIX and Earth Orbiting Missions
Natasha L. S. Jeffrey, Säm Krucker, Morgan Stores +9
The Spectrometer/Telescope for Imaging X-rays (STIX) on board Solar Orbiter (SolO) provides a unique opportunity to systematically perform stereoscopic X-ray observations of solar…
The existence of hot X-ray onsets in solar flares
Andrea Francesco Battaglia, Hugh Hudson, Alexander Warmuth +9
It is well known among the scientific community that solar flare activity often begins well before the main impulsive energy release. Our aim is to investigate the earliest phase o…
Connecting Solar and Stellar Flares/CMEs: Expanding Heliophysics to Encompass Exoplanetary Space Weather
B. J. Lynch, B. E. Wood, M. Jin +25
The aim of this white paper is to briefly summarize some of the outstanding gaps in the observations and modeling of stellar flares, CMEs, and exoplanetary space weather, and to di…
Variation in solar differential rotation and activity in the period 1964-2016 determined by the Kanzelhöhe data set
I. Poljančić Beljan, R. Jurdana-Šepić, T. Jurkić +8
We determined the differential rotation (DR) parameters and (corresponding to the equatorial rotation velocity and the gradient of the solar DR) by tracing sunspot groups i…