The mean infrared emission of Sagittarius A* R. Schödel, M. R. Morris, K. Muzic, A. Alberdi, L. Meyer, A. Eckart and D. Y. Gezari A&A, 532 (2011) A83 Published online: 27 July 2011 DOI: 10.1051/0004-6361/201116994