The birth of Be star disks - I. From localized ejection to circularization J. Labadie-Bartz, A. C. Carciofi, A. C. Rubio, D. Baade, R. Siverd, C. Arcos, A. L. Figueiredo, Y. Nazé, C. Neiner, T. Rivinius et al. (28 more) A&A, 699 (2025) A82 Published online: 02 July 2025 DOI: 10.1051/0004-6361/202453321