Detection of a dense clump in a filament interacting with W51e2 B. Mookerjea, C. Vastel, G. E. Hassel, M. Gerin, J. Pety, P. F. Goldsmith, J. H. Black, T. Giesen, T. Harrison, C. M. Persson and J. Stutzki A&A, 566 (2014) A61 Published online: 12 June 2014 DOI: 10.1051/0004-6361/201323131