Magnetospheric return-current-heated atmospheres of rotation-powered millisecond pulsars Tuomo Salmi, Valery F. Suleimanov, Joonas Nättilä and Juri Poutanen A&A, 641 (2020) A15 Published online: 01 September 2020 DOI: 10.1051/0004-6361/202037824