3 papers
astro-ph.SR2026
Data-driven discovery of dynamo cycle equations
Anna Guseva, Calum Skene, Steve Tobias
Many low-mass stars like the Sun host periodic, oscillatory magnetic fields that lead to variable levels of stellar activity, driving space weather that affects the habitability an…
physics.flu-dyn2025
On nonlinear transitions, minimal seeds and exact solutions for the geodynamo
Calum S. Skene, Florence Marcotte, Steven M. Tobias
Nearly fifty years ago, Roberts (1978) postulated that Earth's magnetic field, which is generated by turbulent motions of liquid metal in its outer core, likely results from a subc…
math.NA2025
Fast automated adjoints for spectral PDE solvers
Calum S. Skene, Keaton J. Burns
We present a general and automated approach for computing model gradients for PDE solvers built on sparse spectral methods, and implement this capability in the widely used open-so…