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Numerical Modeling of Energetic Charged-particle Transport with SPECTRUM Software: General Approach and Artificial Effects due to Field Discretization

التفاصيل البيبلوغرافية
العنوان: Numerical Modeling of Energetic Charged-particle Transport with SPECTRUM Software: General Approach and Artificial Effects due to Field Discretization
المؤلفون: J. G. Alonso Guzmán, V. Florinski, G. Tóth, S. Sharma, B. van der Holst, M. Opher
المصدر: The Astrophysical Journal Supplement Series, Vol 272, Iss 2, p 46 (2024)
بيانات النشر: IOP Publishing, 2024.
سنة النشر: 2024
المجموعة: LCC:Astrophysics
مصطلحات موضوعية: Distributed computing, Monte Carlo methods, Heliosphere, Cosmic rays, Astrophysics, QB460-466
الوصف: Test-particle simulations are an important tool for magnetospheric and heliophysics research. In this paper, we present the Space Plasma and Energetic Charged particle TRansport on Unstructured Meshes (SPECTRUM) software as a novel tool for performing these types of simulations in arbitrary astrophysical environments, specified either analytically or numerically (i.e., on a grid). We discuss and benchmark SPECTRUM’s interface with meshed magnetohydrodynamic backgrounds, including output from the Block Adaptive Tree Solar-wind Roe-type Upwind Scheme (BATS-R-US) code. We also investigate the effects of field discretization on both deterministic and stochastic particle motion, with emphasis on space science applications, concluding that the discretization error typically enhances the diffusive behavior of the ensemble.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1538-4365
0067-0049
Relation: https://doaj.org/toc/0067-0049
DOI: 10.3847/1538-4365/ad4637
URL الوصول: https://doaj.org/article/6304621e03e345a58c10328b9573068c
رقم الأكسشن: edsdoj.6304621e03e345a58c10328b9573068c
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:15384365
00670049
DOI:10.3847/1538-4365/ad4637