A family of Vlasov–Maxwell equilibrium distribution functions describing a transition from the Harris sheet to the force-free Harris sheet

Funding: UK Science and Technology Facilities Council (STFC) via the consolidated grants ST/K000950/1, ST/N000609/1, and ST/S000402/1(T.N. and F.W.) and the Natural Environment Research Council (NERC) Highlight Topic Grant no. NE/P017274/1 (Rad-Sat) (O.A.). T.N. and F.W. would also like to thank the University of St Andrews for general financial support.