Filament coalescence and hub structure in Mon R2 - Implications for massive star and cluster formationM. S. N. Kumar, D. Arzoumanian, A. Men’shchikov, P. Palmeirim, M. Matsumura and S. InutsukaA&A, 658 (2022) A114DOI: https://doi.org/10.1051/0004-6361/202140363