When the primary star in a close binary system evolves into a giant and engulfs its
companion, its core and the companion temporarily orbit each other inside a common …

Massive stars play a major role in the evolution of their host galaxies and serve as important
probes of the distant Universe. It has been established that the majority of massive stars …

We present results from three-dimensional hybrid-kinetic simulations of Alfvénic turbulence
in a high-β, collisionless plasma. The key feature of such turbulence is the interplay between …

The computational complexity of classical numerical methods for solving Partial Differential
Equations (PDE) scales significantly as the resolution increases. As an important example …

The formation of jets in black hole accretion systems is a long-standing problem. It has been
proposed that a jet can be formed by extracting the rotation energy of the black hole (“BZ …

The structure and evolution of protoplanetary discs (PPDs) are largely governed by disc
angular momentum transport, mediated by magnetic fields. In the most observable outer …

As the US Department of Energy (DOE) computing facilities began deploying petascale
systems in 2008, DOE was already setting its sights on exascale. In that year, DARPA …

When astrophysical jets were discovered one hundred years ago, the field of numerical
simulations did not yet exit. Since the arrival of programmable computers though, numerical …

Both multiphase gas and magnetic fields are ubiquitous in astrophysics. However, the
influence of magnetic fields on mixing of the different phases is still largely unexplored. In …

We perform three-dimensional (3D) magnetohydrodynamic simulations of magnetospheric
accretion in a T Tauri star to study the accretion and wind structures in the close vicinity of …