51 citations · 143 across the 23 of their papers we have counts for
24 papers
Magnetohydrodynamic coronal modelling with high-fidelity magnetograms
Haopeng Wang, Stefaan Poedts, Wensi Wang +16
To resolve coronal structures in detail, it is essential to constrain the coronal model using high-fidelity magnetograms with minimal smoothing. In this paper, we improve the numer…
COCONUT: Toward practical time-evolving Sun-to-Earth magnetohydrodynamic modeling
Haopeng Wang, Stefaan Poedts, Andrea Lani +16
Due to computational efficiency and numerical stability limitations, coronal simulations constrained by static magnetograms are typically performed first and then used to drive inn…
MHD modeling of magnetic flux evolution around solar maximum by the coronal model COCONUT
Haopeng Wang, Stefaan Poedts, Andrea Lani +15
In this paper, we simulate the magnetic flux evolution at different heliocentric distances during two solar-maximum Carrington rotations (CRs) using the time-evolving coronal magne…
Total solar eclipse 2024 modelling with COCONUT
Tinatin Baratashvili, Haopeng Wang, Daria Sorokina +2
Coronal modelling is crucial for a better understanding of solar and helio-physics. Due to the strong brightness of the Sun and the lack of white light observations of the solar at…
Investigating the impact of the dynamic solar wind on the propagation of a coronal mass ejection with two models and multi-spacecraft measurements
Tinatin Baratashvili, Emma Davies, Eva Weiler +3
Coronal mass ejections (CMEs) are the main drivers of disturbances in the solar heliosphere because they propagate and interact with the magnetic field of the solar wind. It is cru…
COCONUT: A coronal model with an energy decomposition strategy
Haopeng Wang, Stefaan Poedts, Andrea Lani +11
In this paper, we propose an energy decomposition method combined with an HLL Riemann solver that includes an additional dissipation term in the energy equation to improve the nume…
SIP-IFVM: An observation-based magnetohydrodynamic model of coronal mass ejection
Haopeng Wang, Jinhan Guo, Stefaan Poedts +12
Currently, achieving a balance between computational efficiency, accuracy, and numerical stability in CME simulations, particularly in the sub-Alfv{'e}nic coronal region, remains a…
Time-evolving coronal modelling of the solar maximum around the solar storms in May 2024 by COCONUT
Haopeng Wang, Stefaan Poedts, Andrea Lani +8
Time-evolving MHD coronal models deliver more realistic results than traditional quasi-steady-state models. The fully implicit time-evolving coronal model COCONUT performs efficien…
SIP-IFVM: A time-evolving coronal model with an extended magnetic field decomposition strategy
Haopeng Wang, Liping Yang, Stefaan Poedts +20
Time-evolving magnetohydrodynamic (MHD) coronal modeling, driven by a series of time-dependent photospheric magnetograms, represents a new generation of coronal simulations. This a…
Icarus 3.0: Dynamic Heliosphere Modelling
Tinatin Baratashvili, Beatrice Popescu Braileanu, Fabio Bacchini +2
Space weather predictions are necessary to avoid damage caused by intense geomagnetic storms. Such strong storms are usually caused by a co-rotating interaction region (CIR) passin…
CME propagation in the dynamically coupled space weather tool: COCONUT + EUHFORIA
L. Linan, T. Baratashvili, A. Lani +4
This paper aims to present the time-dependent coupling between the coronal model COolfluid COroNal UnsTructured (COCONUT) and the heliospheric forecasting tool EUHFORIA. We perform…
Efficient magnetohydrodynamic modelling of the time-evolving corona by COCONUT
Haopeng Wang, Stefaan Poedts, Andrea Lani +6
Compared to quasi-steady-state corona models that are constrained by a time-invariant magnetogram over a CR period, time-evolving corona models driven by time-varying photospheric…
SIP-IFVM: Efficient time-accurate magnetohydrodynamic model of the corona and coronal mass ejections
H. P. Wang, J. H. Guo, L. P. Yang +7
In this paper, we present an efficient and time-accurate three-dimensional (3D) single-fluid MHD solar coronal model and employ it to simulate CME evolution and propagation. Based…
The operationally ready full three-dimensional magnetohydrodynamic (3D MHD) model from the Sun to Earth: COCONUT+Icarus
Tinatin Baratashvili, Michaela Brchnelova, Luis Linan +2
Solar wind modelling has become a crucial area of study due to the increased dependence of modern society on technology, navigation, and power systems. Accurate space weather forec…
How coronal mass ejections are influenced by the morphology and toroidal flux of their source magnetic flux ropes?
J. H. Guo, L. Linan, S. Poedts +9
Coronal mass ejections (CMEs) stand as intense eruptions of magnetized plasma from the Sun, playing a pivotal role in driving significant changes of the heliospheric environment. D…
Multi spacecraft study with the Icarus model: Modelling the propagation of CMEs to Mercury and Earth
Tinatin Baratashvili, Benjamin Grison, Brigitte Schmieder +2
Coronal Mass Ejections (CMEs) are the main drivers of the disturbances in interplanetary space. Understanding the CME interior magnetic structure is crucial for advancing space wea…
Energetic particle acceleration and transport with the novel IcarusPARADISE model
Edin Husidic, Nicolas Wijsen, Tinatin Baratashvili +2
With the rise of satellites and mankind's growing dependence on technology, there is an increasing awareness of space weather phenomena related to high-energy particles. Shock wave…
The effect of AMR and grid stretching on the magnetized CME model in Icarus
Tinatin Baratashvili, Stefaan Poedts
Context. Coronal mass ejections (CMEs) are the main driver of solar wind disturbances near Earth. When directed towards us, the internal magnetic field of the CME can interact with…
Modelling the propagation of coronal mass ejections with COCONUT: implementation of the Regularized Biot-Savart Laws flux rope model
Jinhan Guo, L. Linan, S. Poedts +8
Context: Coronal mass ejections (CMEs) are rapid eruptions of magnetized plasma that occur on the Sun, which are known as the main drivers of adverse space weather. Accurately trac…
Exploring the effects of numerical methods and slope limiters in heliospheric modeling
Tinatin Baratashvili, Christine Verbeke, Rony Keppens +1
Coronal mass ejections (CMEs) are large eruptions close to the solar surface, where plasma is ejected outwards into space at large speeds. When directed towards Earth, they interfe…
Improving CME evolution and arrival predictions with AMR and grid stretching in Icarus
Tinatin Baratashvili, Christine Verbeke, Nicolas Wijsen +1
Coronal Mass Ejections (CMEs) are one of the main drivers of disturbances in the interplanetary space. Strong CMEs, when directed towards the Earth, cause geo-magnetic storms upon…
COCONUT, a novel fast-converging MHD model for solar corona simulations: II. Assessing the impact of the input magnetic map on space-weather forecasting at minimum of activity
Barbara Perri, Blazej Kuzma, Michaela Brchnelova +5
This paper is dedicated to the new implicit unstructured coronal code COCONUT, which aims at providing fast and accurate inputs for space weather forecast as an alternative to empi…
COCONUT, a novel fast-converging MHD model for solar corona simulations: I. Benchmarking and optimization of polytropic solutions
Barbara Perri, Peter Leitner, Michaela Brchnelova +5
We present a novel global 3-D coronal MHD model called COCONUT, polytropic in its first stage and based on a time-implicit backward Euler scheme. Our model boosts run-time performa…
A binary with a ~Scuti star and an oscillating red giant: orbit and asteroseismology of KIC9773821
Simon J Murphy, Tanda Li, Sanjay Sekaran +8
We study the Scuti -- red giant binary KIC9773821, the first double-pulsator binary of its kind. It was observed by \textit{Kepler} during its four-year mission. Our aims are t…