An analysis of the vertical photospheric velocity field as observed by THEMIS V. Carbone, F. Lepreti, L. Primavera, E. Pietropaolo, F. Berrilli, G. Consolini, G. Alfonsi, B. Bavassano, R. Bruno, A. Vecchio and P. Veltri A&A, 381 1 (2002) 265-270 Published online: 15 January 2002 DOI: 10.1051/0004-6361:20011417