Hot gas heating via magnetic arms in spiral galaxies - The case of M 83 M. Weżgowiec, M. Ehle, M. Soida, R.-J. Dettmar, R. Beck and M. Urbanik A&A, 640 (2020) A109 Published online: 21 August 2020 DOI: 10.1051/0004-6361/202037842