Gaia broad band photometry C. Jordi, M. Gebran, J. M. Carrasco, J. de Bruijne, H. Voss, C. Fabricius, J. Knude, A. Vallenari, R. Kohley and A. Mora A&A, 523 (2010) A48 Published online: 16 November 2010 DOI: 10.1051/0004-6361/201015441