64 citations · 349 across the 24 of their papers we have counts for
27 papers
Relative magnetic helicity under turbulent relaxation
Sauli Lindberg, David MacTaggart
Magnetic helicity is a quantity that underpins many theories of magnetic relaxation in electrically conducting fluids, both laminar and turbulent. Although much theoretical effort…
The source of the 2017 cosmic ray half-year modulation event
O. P. M. Aslam, D. MacTaggart, R. Battiston +2
In 2017, as the solar cycle approached solar minimum, an unusually long and large depression was observed in galactic cosmic ray (GCR) protons, detected with the Alpha Magnetic Spe…
Elastic jump propagation across a blood vessel junction
Tamsin A. Spelman, Ifeanyi S. Onah, David MacTaggart +1
The theory of small-amplitude waves propagating across a blood vessel junction has been well established with linear analysis. In this study we consider the propagation of large-am…
Differential rotation in convecting spherical shells with non-uniform viscosity and entropy diffusivity
Parag Gupta, David MacTaggart, Radostin D. Simitev
Contemporary three-dimensional physics-based simulations of the solar convection zone disagree with observations. They feature differential rotation substantially different from th…
Deciphering Pre-solar-storm Features Of September-2017 Storm From Global And Local Dynamics
Breno Raphaldini, Mausumi Dikpati, Aimee A. Norton +4
We investigate whether global toroid patterns and the local magnetic field topology of solar active region AR12673 together can hindcast occurrence of the biggest X-flare of solar…
Relative magnetic helicity in multiply connected domains
David MacTaggart, Alberto Valli
Magnetic helicity is a conserved quantity of ideal magnetohydrodynamics (MHD) that is related to the topology of the magnetic field, and is widely studied in both laboratory and as…