The Galactic halo stellar density distribution from photometric survey data: results of a pilot studyM. Cignoni, V. Ripepi, M. Marconi, J. M. Alcalá, M. Capaccioli, M. Pannella and R. SilvottiA&A, 463 3 (2007) 975-979DOI: https://doi.org/10.1051/0004-6361:20066598