The Evolution of Stellar Mass in Galaxies in the NICMOS Ultra Deep Field | Zendy

Stephen Gwyn | Zendy; F. D. A. Hartwick | Zendy

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The Evolution of Stellar Mass in Galaxies in the NICMOS Ultra Deep Field

Author(s) -

Stephen Gwyn,

F. D. A. Hartwick

Publication year - 2005

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/432932

Subject(s) - physics , astrophysics , stellar mass , star formation , galaxy , redshift , astronomy , hubble deep field , hubble ultra deep field , galaxy formation and evolution

We measure the build-up of the stellar mass of galaxies from z=6 to z=1.Using 15 band multicolor imaging data in the NICMOS Ultra Deep Field we derivephotometric redshifts and masses for 796 galaxies down to H(AB)=26.5. Thederived evolution of the global stellar mass density of galaxies is consistentwith previous star formation rate density measurements over the observed rangeof redshifts. Beyond the observed range, maintaining consistency between theglobal stellar mass and the observed star formation rate suggests the epoch ofgalaxy formation was z=16.

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