ALMA resolves the hourglass magnetic field in G31.41+0.31 M. T. Beltrán, M. Padovani, J. M. Girart, D. Galli, R. Cesaroni, R. Paladino, G. Anglada, R. Estalella, M. Osorio, R. Rao et al. (2 more) A&A, 630 (2019) A54 Published online: 23 September 2019 DOI: 10.1051/0004-6361/201935701