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STARFORGE: Toward a comprehensive numerical model of star cluster formation and feedback
Michael Y. Grudić, Dávid Guszejnov, Philip F. Hopkins +2
We present STARFORGE (STAR FORmation in Gaseous Environments): a new numerical framework for 3D radiation MHD simulations of star formation that simultaneously follow the formation…
Astro2020 APC White Paper: Theoretical Astrophysics 2020-2030
Juna A. Kollmeier, Lauren Anderson, Andrew Benson +20
The past two decades have seen a tremendous investment in observational facilities that promise to reveal new and unprecedented discoveries about the universe. In comparison, the i…
A general-purpose timestep criterion for simulations with gravity
Michael Y. Grudić, Philip F. Hopkins
We describe a new adaptive timestep criterion for integrating gravitational motion, which uses the tidal tensor to estimate the local dynamical timescale and scales the timestep pr…
A New Public Release of the GIZMO Code
Philip F. Hopkins
We describe a major update to the public GIZMO code. GIZMO has been used in simulations of cosmology; galaxy and star formation and evolution; black hole accretion and feedback; pr…
Anisotropic Diffusion in Mesh-Free Numerical Magnetohydrodynamics
Philip F. Hopkins
We extend recently-developed mesh-free Lagrangian methods for numerical magnetohydrodynamics (MHD) to arbitrary anisotropic diffusion equations, including: passive scalar diffusion…
A Constrained-Gradient Method to Control Divergence Errors in Numerical MHD
Philip F. Hopkins
In numerical magnetohydrodynamics (MHD), a major challenge is maintaining zero magnetic field-divergence (div-B). Constrained transport (CT) schemes can achieve this at high accura…