At the source of the polarisation of auroral emissions: experiments and modeling Léo Bosse, Jean Lilensten, Nicolas Gillet, Colette Brogniez, Olivier Pujol, Sylvain Rochat, Alain Delboulbé, Stéphane Curaba and Magnar Gullikstad Johnsen J. Space Weather Space Clim., 12 (2022) 7 Published online: 01 April 2022 DOI: 10.1051/swsc/2022004