activity
19992026
most citedTorus instability

895 citations · 6.9k across the 61 of their papers we have counts for

collaborators

58 papers

astro-ph.SR2026

Parametric Study of the Torus Instability Threshold

Jun Chen, Bernhard Kliem, Rui Liu

The torus instability of an arched current channel has been suggested to initiate and drive major solar and stellar eruptions. Its threshold, given by the critical decay index of t…

astro-ph.SR2025

Magnetic Decay Index Profile and Coronal Mass Ejection Speed

Bernhard Kliem, Georgios Chintzoglou, Tibor Török +1

We study the relationship between the speed of coronal mass ejections (CMEs) and the height profile of the ambient magnetic field, quantified by its decay index, n(h). Our sample i…

astro-ph.SR2025

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…

astro-ph.SR2024

Multipoint study of the rapid filament evolution during a confined C2 flare on 28 March 2022, leading to eruption

Stefan Purkhart, Astrid M. Veronig, Bernhard Kliem +5

We studied the rapid filament evolution in AR 12975 during a confined C2 flare on 28 March 2022, which led to an eruptive M4 flare 1.5 h later. It is characterized by the breakup o…

astro-ph.SR2023★ 18 cited

Multi-point study of the energy release and transport in the 28 March 2022, M4-flare using STIX, EUI, and AIA during the first Solar Orbiter nominal mission perihelion

Stefan Purkhart, Astrid M. Veronig, Ewan C. M. Dickson +6

We present a case study of an M4-class flare on 28 March 2022, near Solar Orbiter's first science perihelion (0.33 AU). Solar Orbiter was 83.5° west of the Sun-Earth line, making t…

astro-ph.SR2023★ 24 cited

A Model for Confined Solar Eruptions Including External Reconnection

Jun Chen, Xin Cheng, Bernhard Kliem +1

The violent disruption of the coronal magnetic field is often observed to be restricted to the low corona, appearing as a confined eruption. The possible causes of the confinement…