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Gyrosynchrotron radiation is produced by solar flares, and can be used to infer properties of the accelerated electrons and magnetic field of the flaring region. This microwave emission is highly dependent on many local plasma parameters,…

Solar and Stellar Astrophysics · Physics 2019-03-12 Christopher M. J. Osborne , Paulo J. A. Simões

The structure of the photospheric magnetic field during solar flares is examined using echelle spectropolarimetric observations. The study is based on several Fe I and Cr I lines observed at locations corresponding to brightest H$\alpha$…

Solar and Stellar Astrophysics · Physics 2015-06-19 Mykola Gordovskyy , Vsevolod G. Lozitsky

The Fusion Synthesis Engine (FUSE) is a state-of-the-art software suite designed to revolutionize fusion power plant design. FUSE integrates first-principle models, machine learning, and reduced models into a unified framework, enabling…

Stellar flare events are critical observational samples for astronomical research; however, recorded flare events remain limited. Stellar flare forecasting can provide additional flare event samples to support research efforts. Despite this…

Solar and Stellar Astrophysics · Physics 2025-05-23 Bingke Zhu , Xiaoxiao Wang , Minghui Jia , Yihan Tao , Xiao Kong , Ali Luo , Yingying Chen , Ming Tang , Jinqiao Wang

The ALICE Collaboration at CERN developed a 3D visualisation tool capable of displaying a representation of collected collision data (particle trajectories, clusters and calorimeter towers) called the Event Display. The Event Display is…

Instrumentation and Detectors · Physics 2023-09-25 Piotr Nowakowski , Przemysław Rokita , Łukasz Graczykowski

Magnetic reconnection is a fundamental physical process in many laboratory, space, and astrophysical plasma contexts. Solar flares serve as an outstanding laboratory to study the magnetic reconnection and the associated energy release and…

Implicit Neural Representations (INRs) leverage neural networks to map coordinates to corresponding signals, enabling continuous and compact representations. This paradigm has driven significant advances in various vision tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Sukhun Ko , Seokhyun Youn , Dahyeon Kye , Kyle Min , Chanho Eom , Jihyong Oh

Magnetic reconnection is a fundamental physical process converting magnetic energy into not only plasma energy but also particle energy in various astrophysical phenomena. In this letter, we show a unique dataset of a solar flare where…

Solar and Stellar Astrophysics · Physics 2022-01-12 Lei Lu , Li Feng , Alexander Warmuth , Astrid M. Veronig , Jing Huang , Siming Liu , Weiqun Gan , Zongjun Ning , Beili Ying , Guannan Gao

We propose a scheme to mapping electromagnetic fields structure in plasma by using a spin polarized relativistic electron beam. Especially by using Particle-in-Cell (PIC) and electron spin tracing simulations, we have successfully…

Plasma Physics · Physics 2019-07-02 X. Y. An M. Chen , J. X. Li , S. M. Weng , F. He , Z. M. Sheng , J. Zhang

We review a scalable two- and three-dimensional computer code for low-temperature plasma simulations in multi-material complex geometries. Our approach is based on embedded boundary (EB) finite volume discretizations of the minimal…

Computational Physics · Physics 2019-05-01 Robert Marskar

In tokamak operations, accurate equilibrium reconstruction is essential for reliable real-time control and realistic post-shot instability analysis. The safety factor (q) profile defines the magnetic field line pitch angle, which is the…

Plasma Physics · Physics 2023-07-12 Xishuo Wei , Ge Dong , Shuying Sun , William Tang , Zhihong Lin , Hongfei Du

Synchrotron processes, the radiative processes associated with the interaction of energetic charged particles with magnetic field, are of interest in many areas in astronomy, from the interstellar medium to extreme environments near compact…

This work is a continuation of Paper I [Sharykin et al., 2018] devoted to analysis of nonthermal electron dynamics and plasma heating in the confined M1.2 class solar flare SOL2015-03-15T22:43 revealing energy release in the highly sheared…

Solar and Stellar Astrophysics · Physics 2020-05-06 I. N. Sharykin , I. V. Zimovets , I. I. Myshyakov

Numerical simulation codes are basic tools for designing Free Electron Lasers (FELs). This paper describes a numerical method for the time-dependent, three-dimensional simulation of the free electron laser (FEL) using a rectangular…

Accelerator Physics · Physics 2020-04-22 Weiwei Li , Heting Li , Zhigang He , Qika Jia , Lin Wang , Yalin Lu

Fast $\gamma$-ray variability in blazars remains a central puzzle in high-energy astrophysics, challenging standard shock acceleration models. Blazars, a subclass of active galactic nuclei (AGN) with jets pointed close to our line of sight,…

High Energy Astrophysical Phenomena · Physics 2025-11-26 Chandan Kumar Das , Bhargav Vaidya , Amit Shukla , Giancarlo Mattia , Karl Mannheim

JOREK is a massively parallel fully implicit non-linear extended MHD code for realistic tokamak X-point plasmas. It has become a widely used versatile code for studying large-scale plasma instabilities and their control developed in an…

We present a code allowing to evolve three-dimensional self-gravitating collisionless systems with a large number of particles N >= 10^7. FLY (Fast Level-based N-bodY code) is a fully parallel code based on a tree algorithm. It adopts…

Astrophysics · Physics 2007-05-23 U. Becciani , V. Antonuccio-Delogu , F. Buonomo , C. Gheller

Reconstruction of tomographic images from boundary measurements requires flexibility with respect to target domains. For instance, when the system equations are modeled by partial differential equations the reconstruction is usually done on…

Image and Video Processing · Electrical Eng. & Systems 2023-05-10 William Herzberg , Andreas Hauptmann , Sarah J. Hamilton

We present a technique for automatic determination of flare-ribbon separation and the energy released during the course of two-ribbon flares. We have used chromospheric H$\alpha$ filtergrams and photospheric line-of-sight magnetograms to…

Solar and Stellar Astrophysics · Physics 2010-02-08 R. A. Maurya , A. Ambastha

A high-order piecewise field-aligned triangular finite element method is developed and implemented for global electromagnetic gyrokinetic particle-in-cell simulations of tokamak plasmas with open field lines. The approach combines locally…

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