Modelling the solar transition region using an adaptive conduction method C. D. Johnston, P. J. Cargill, A. W. Hood, I. De Moortel, S. J. Bradshaw and A. C. Vaseekar A&A, 635 (2020) A168 Published online: 30 March 2020 DOI: 10.1051/0004-6361/201936979