A magnetized torus for modeling Sagittarius A∗ millimeter images and spectra F. H. Vincent, W. Yan, O. Straub, A. A. Zdziarski and M. A. Abramowicz A&A, 574 (2015) A48 Published online: 22 January 2015 DOI: 10.1051/0004-6361/201424306