Modeling the CO outflow in DG Tauri B: Swept-up shells versus perturbed MHD disk wind A. de Valon, C. Dougados, S. Cabrit, F. Louvet, L. A. Zapata and D. Mardones A&A, 668 (2022) A78 Published online: 09 December 2022 DOI: 10.1051/0004-6361/202141316