Submillimeter continuum observations of Sagittarius B2 at subarcsecond spatial resolution S.-L. Qin, P. Schilke, R. Rolffs, C. Comito, D. C. Lis and Q. Zhang A&A, 530 (2011) L9 Published online: 16 May 2011 DOI: 10.1051/0004-6361/201116928