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PIC methods in astrophysics: simulations of relativistic jets and kinetic physics in astrophysical systems

机译:天体物理学的PIC方法:天体物理系统中相对论喷射和动力学物理学的模拟

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The Particle-In-Cell (PIC) method has been developed by Oscar Buneman, Charles Birdsall, Roger W. Hockney, and John Dawson in the 1950s and, with the advances of computing power, has been further developed for several fields such as astrophysical, magnetospheric as well as solar plasmas and recently also for atmospheric and laser-plasma physics. Currently more than 15 semi-public PIC codes are available which we discuss in this review. Its applications have grown extensively with increasing computing power available on high performance computing facilities around the world. These systems allow the study of various topics of astrophysical plasmas, such as magnetic reconnection, pulsars and black hole magnetosphere, non-relativistic and relativistic shocks, relativistic jets, and laser-plasma physics. We review a plethora of astrophysical phenomena such as relativistic jets, instabilities, magnetic reconnection, pulsars, as well as PIC simulations of laser-plasma physics (until 2021) emphasizing the physics involved in the simulations. Finally, we give an outlook of the future simulations of jets associated to neutron stars, black holes and their merging and discuss the future of PIC simulations in the light of petascale and exascale computing.
机译:粒子内(PIC)方法是由奥斯卡······布尔(Charles Bircor),Roger W.Hoknney和John Dawson在20世纪50年代开发的,并且随着计算能力的进展,已经为诸如天体物理等几个领域进一步开发了,磁体和太阳能等离子体,最近也用于大气和激光等离子物理学。目前,我们在本次审查中讨论了超过15个半公共图片代码。其应用在世界各地的高性能计算设施上增加了越来越多的计算能力。这些系统允许研究天体物理等离子体的各种主题,例如磁性重新连接,脉冲脉和黑洞磁层,非相对论和相对论的冲击,相对论喷射和激光等离子物理学。我们审查了一种夸氯的天体物理现象,如相对论的喷射器,稳定性,磁重新连接,脉冲条件,以及激光等离子物理学的图片模拟(直到2021),强调了仿真中涉及的物理。最后,我们在未来模拟与中子恒星,黑洞及其合并相关的喷气机的展望,并鉴于PetaScale和Exascale Computing的PIC模拟的未来。

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