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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…
The Birth of A Coronal Mass Ejection
Tingyu Gou, Rui Liu, Bernhard Kliem +2
The Sun's atmosphere is frequently disrupted by coronal mass ejections (CMEs), coupled with flares and energetic particles. In the standard picture, the coupling is explained by ma…
Successive flux rope eruptions from -Sunspots region of NOAA 12673 and associated X-class eruptive flares on 2017 September 6
Prabir K. Mitra, Bhuwan Joshi, Avijeet Prasad +2
In this paper, we present a multi-wavelength analysis of two X-class solar eruptive flares of classes X2.2 and X9.3 that occurred in the sigmoidal active region NOAA 12673 on 2017…
Genesis and impulsive evolution of the 2017 September 10 coronal mass ejection
Astrid M. Veronig, Tatiana Podladchikova, Karin Dissauer +7
The X8.2 event of 10 September 2017 provides unique observations to study the genesis, magnetic morphology and impulsive dynamics of a very fast CME. Combining GOES-16/SUVI and SDO…