32 citations · 121 across the 7 of their papers we have counts for
7 papers
A Hot Cusp-Shaped Confined Solar Flare
Aaron Hernandez-Perez, Yang Su, Julia K. Thalmann +5
We analyze a confined flare that developed a hot cusp-like structure high in the corona (H ~ 66 Mm). A growing cusp-shaped flare arcade is a typical feature in the standard model o…
Pre-eruption processes: heating, particle acceleration and the formation of a hot channel before the 2012 October 20 M9.0 limb flare
Aaron Hernandez-Perez, Yang Su, Astrid M. Veronig +3
We report a detailed study of the pre-eruption activities that led to the occurrence of an M9.0 flare/CME event on 2012 October 20 in NOAA AR 11598. This includes the study of the…
Numerical Simulation of Coronal Waves Interacting with Coronal Holes: III. Dependence on Initial Amplitude of the Incoming Wave
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +4
We performed 2.5D magnetohydrodynamic (MHD) simulations showing the propagation of fast-mode MHD waves of different initial amplitudes and their interaction with a coronal hole (CH…
Numerical Simulation of Coronal Waves Interacting with Coronal Holes: II. Dependence on Alfvén Speed Inside the Coronal Hole
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +4
We used our newly developed magnetohydrodynamic (MHD) code to perform 2.5D simulations of a fast-mode MHD wave interacting with coronal holes (CH) of varying Alfvén speed which res…
Numerical Simulation of Coronal Waves interacting with Coronal Holes: I. Basic Features
Isabell Piantschitsch, Bojan Vrsnak, Arnold Hanslmeier +5
We developed a new numerical code that is able to perform 2.5D simulations of a magnetohydrodynamic (MHD) wave propagation in the corona, and its interaction with a low density reg…
Generation mechanisms of quasi-parallel and quasi-circular flare ribbons in a confined flare
Aaron Hernandez-Perez, Julia K. Thalmann, Astrid M. Veronig +3
We analyze a confined multiple-ribbon M2.1 flare (SOL2015-01-29T11:42) that originated from a fan-spine coronal magnetic field configuration, within active region NOAA 12268. The o…
Direct Observation of Two-Step Magnetic Reconnection in a Solar Flare
Tingyu Gou, Astrid M. Veronig, Ewan Dickson +2
We report observations of an eruptive X2.8 flare on 2013 May 13, which shows two distinct episodes of energy release in the impulsive phase. The first episode is characterized by t…