A&A 504, 751–767 (2009) Astronomy DOI: 10.1051/0004-6361/200811434 & c ESO 2009 Astrophysics Star formation and mass assembly in high redshift galaxies P. Santini1,2,A.Fontana1, A. Grazian1,S.Salimbeni1,3, F. Fiore1, F. Fontanot4, K. Boutsia1, M. Castellano1,2, S. Cristiani5, C. De Santis6,7, S. Gallozzi1, E. Giallongo1, N. Menci1, M. Nonino5, D. Paris1, L. Pentericci1, and E. Vanzella5 1 INAF – Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monteporzio (RM), Italy e-mail:
[email protected] 2 Dipartimento di Fisica, Università di Roma “La Sapienza”, P.le A. Moro 2, 00185 Roma, Italy 3 Department of Astronomy, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA 4 MPIA Max-Planck-Institute für Astronomie, Koenigstuhl 17, 69117 Heidelberg, Germany 5 INAF – Osservatorio Astronomico di Trieste, via G.B. Tiepolo 11, 34131 Trieste, Italy 6 Dip. di Fisica, Università Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy 7 INFN – Roma Tor Vergata, via della Ricerca Scientifica 1, 00133 Roma, Italy Received 27 November 2008 / Accepted 24 April 2009 ABSTRACT Aims. The goal of this work is to infer the star formation properties and the mass assembly process of high redshift (0.3 ≤ z < 2.5) galaxies from their IR emission using the 24 μm band of MIPS-Spitzer. Methods. We used an updated version of the GOODS-MUSIC catalog, which has multiwavelength coverage from 0.3 to 24 μmand either spectroscopic or accurate photometric redshifts. We describe how the catalog has been extended by the addition of mid-IR fluxes derived from the MIPS 24 μm image.