Results 1 to 10 of about 78,498 (257)

Investigation of Machine Learning Techniques for Disruption Prediction Using JET Data

Plasma, 2023
Disruption prediction and mitigation is of key importance in the development of sustainable tokamak reactors. Machine learning has become a key tool in this endeavour. In this paper, multiple machine learning models are tested and compared.
Joost Croonen, Jorge Amaya, Giovanni Lapenta   +2 more
doaj   +1 more source

Non-Linear Damping of Surface Alfvén Waves Due to Uniturbulence

Frontiers in Astronomy and Space Sciences, 2022
This investigation is concerned with uniturbulence associated with surface Alfvén waves that exist in a Cartesian equilibrium model with a constant magnetic field and a piece-wise constant density.
Rajab Ismayilli, Tom Van Doorsselaere, Marcel Goossens, Norbert Magyar, Norbert Magyar   +4 more
doaj   +1 more source

COCONUT, a Novel Fast-converging MHD Model for Solar Corona Simulations. III. Impact of the Preprocessing of the Magnetic Map on the Modeling of the Solar Cycle Activity and Comparison with Observations

The Astrophysical Journal, 2023
We developed a novel global coronal COCONUT (Coolfluid Corona Unstructured) model based on the COOLFluiD code. The steady-state model is predetermined by magnetograms set as boundary conditions, while inside the numerical domain the corona is described ...
Błażej Kuźma, Michaela Brchnelova, Barbara Perri, Tinatin Baratashvili, Fan Zhang, Andrea Lani, Stefaan Poedts   +6 more
doaj   +1 more source

Analysis of Deformation and Erosion during CME Evolution

Geosciences, 2021
Magnetised coronal mass ejections (CMEs) are quite substantially deformed during their journey form the Sun to the Earth. Moreover, the interaction of their internal magnetic field with the magnetic field of the ambient solar wind can cause deflection ...
Skralan Hosteaux, Emmanuel Chané, Stefaan Poedts   +2 more
doaj   +1 more source

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

The Astrophysical Journal, 2023
This paper is dedicated to the new implicit unstructured coronal code COCONUT, which aims at providing fast and accurate inputs for space-weather forecasting as an alternative to empirical models.
Barbara Perri, Błażej Kuźma, Michaela Brchnelova, Tinatin Baratashvili, Fan Zhang, Peter Leitner, Andrea Lani, Stefaan Poedts   +7 more
doaj   +1 more source

Variable Density Flows in Rotating Astrophysical Plasma. Linear Waves and Resonant Phenomena

Universe, 2021
New observational data and modeling of physical processes constantly appear in the young and rapidly developing branch of science of plasma astrophysics.
Maria Fedotova, Dmitry Klimachkov, Arakel Petrosyan   +2 more
doaj   +1 more source

QGP Theory: Status and Perspectives [PDF]

, 2002
The current status of Quark-Gluon-Plasma Theory is reviewed. Special emphasis is placed on QGP signatures, the interpretation of current data and what to expect from RHIC in the near future.Comment: 20 pages, invited overview talk at the 4th ...
A Dumitru, A Dumitru, A M Polyakov, B Barrois, B R Schlei, B Sinha, C Adler, C Adler, C Greiner, C Song, C Spieles, C Spieles, C Tar De, D Bailin, D Evans, D Kharzeev, D Kharzeev, D Kharzeev, D Rischke, D Teaney, DK Srivastava, DM Elliott, E Andersen, E Laermann, EV Shuryak, F Gabler, F Karsch, F R Brown, GQ Li, H Sorge, H Sorge, H Sorge, J Alam, J Bolz, J C Collins, J Geiss, J Kapusta, J Kapusta, J Knoll, J Letessier, J Letessier, J Letessier, J P Blaizot, J Rafelski, J Sollfrank, JD Bjorken, JJ Neumann, JW Harris, K Adcox, K Geiger, K Geiger, K Kajantie, K Wilson, L D McLerran, L McLerran, L V Bravina, L V Bravina, L Xiong, LA Winckelmann, M Asakawa, M Bleicher, M Bleicher, M Creutz, M G Alford, M Gyulassy, M Gyulassy, P Braun-Munzinger, P Braun-Munzinger, P Braun-Munzinger, P Koch, P Koch, P Levai, P V Ruuskanen, P V Ruuskanen, R Baier, R Caliandro, R D Pisarski, R L Thews, R Lietava, R M Weiner, R Rapp, R Rapp, R Rapp, R Rapp, R Rapp, R Vogt, RC Hwa, S A Bass, S A Bass, S A Bass, S A Bass, S A Bass, S A Bass, S E Vance, S Gavin, S Gavin, S Gavin, S Jeon, S Jeon, S Margetis, S Pratt, S Pratt, S Soff, S Soff, SA Bass, SA Bass, Steffen A. Bass, T Biro, T Matsui, T Matsui, T Schafer, TS Biro, U Wiedemann, V Koch, W Cassing, W Cassing, W Poschl, X N Wang, X N Wang, X Wang   +119 more
core   +2 more sources

Collisionless Shocks as a Diagnostic Tool for Understanding Energetic Particle Transport in Space Plasmas

Frontiers in Astronomy and Space Sciences, 2020
We study the transport of energetic particles accelerated at three different shock events observed in the solar wind by the ACE spacecraft. We consider particle propagation for a quasi-parallel, an oblique, and a quasi-perpendicular shock.
Gaetano Zimbardo, Gaetano Zimbardo, Giuseppe Prete, Silvia Perri   +3 more
doaj   +1 more source

Microphysical Plasma Relations from Special-relativistic Turbulence

The Astrophysical Journal, 2023
The microphysical, kinetic properties of astrophysical plasmas near accreting compact objects are still poorly understood. For instance, in modern general-relativistic magnetohydrodynamic simulations, the relation between the temperature of electrons T ...
Claudio Meringolo, Alejandro Cruz-Osorio, Luciano Rezzolla, Sergio Servidio   +3 more
doaj   +1 more source

Domain of Influence Analysis: Implications for Data Assimilation in Space Weather Forecasting

Frontiers in Astronomy and Space Sciences, 2020
Solar activity, ranging from the background solar wind to energetic coronal mass ejections (CMEs), is the main driver of the conditions in the interplanetary space and in the terrestrial space environment, known as space weather.
Dimitrios Millas, Dimitrios Millas, Maria Elena Innocenti, Brecht Laperre, Joachim Raeder, Stefaan Poedts, Stefaan Poedts, Giovanni Lapenta   +7 more
doaj   +1 more source