Pegasus swMATH ID: 18068 Software Authors: Kunz, Matthew W.; Stone, James M.; Bai, Xue-Ning Description: Pegasus: a new hybrid-kinetic particle-in-cell code for astrophysical plasma dynamics. We describe Pegasus, a new hybrid-kinetic particle-in-cell code tailored for the study of astrophysical plasma dynamics. The code incorporates an energy-conserving particle integrator into a stable, second-order-accurate, three-stage predictor-predictor-corrector integration algorithm. The constrained transport method is used to enforce the divergence-free constraint on the magnetic field. A δf scheme is included to facilitate a reduced-noise study of systems in which only small departures from an initial distribution function are anticipated. The effects of rotation and shear are implemented through the shearing-sheet formalism with orbital advection. These algorithms are embedded within an architecture similar to that used in the popular astrophysical magnetohydrodynamics code Athena, one that is modular, well-documented, easy to use, and efficiently parallelized for use on thousands of processors. We present a series of tests in one, two, and three spatial dimensions that demonstrate the fidelity and versatility of the code. Homepage: http://www.sciencedirect.com/science/article/pii/S0021999113007973 Keywords: hybrid; particle-in-cell; numerical methods; plasma Related Software: gs2; AstroGK; VORPAL; XGC0; OSIRIS; Viriato; SpectralPlasmaSolver; Mayavi; MayaVi; 2D2V; H-VLPL; Vador; wxWidgets; DEMOCRITUS; AETHER; VTK; BOUT++; COMSOL; QUICKPIC; TOKAM-3D Cited in: 9 Publications all top 5 Cited by 20 Authors 3 Chacón, Luis 2 Stanier, A. 1 Bai, Xue-Ning 1 Bettencourt, Matthew T. 1 Causley, Matthew F. 1 Celik, Murat Alp 1 Chen, Guangye 1 Christlieb, Andrew J. 1 Dorland, William 1 Juno, J. 1 Kawazura, Yohei 1 Kunz, Matthew W. 1 Ricketson, Lee Forrest 1 Stasiewicz, Krzysztof 1 Stone, James M. 1 Strumik, Marek 1 TenBarge, J. M. 1 Tranquilli, Paul 1 Turkoz, Emre 1 Wolf, Eric M. Cited in 1 Serial 9 Journal of Computational Physics Cited in 5 Fields 6 Fluid mechanics (76-XX) 5 Numerical analysis (65-XX) 4 Statistical mechanics, structure of matter (82-XX) 2 Partial differential equations (35-XX) 1 Astronomy and astrophysics (85-XX) Citations by Year