Main sequence dynamo magnetic fields emerging in the white dwarf phaseM. Camisassa, J. R. Fuentes, M. R. Schreiber, A. Rebassa-Mansergas, S. Torres, R. Raddi and I. DominguezA&A, 691 (2024) L21DOI: https://doi.org/10.1051/0004-6361/202452539