The Stellar Mass Assembly of Galaxies from z = 0 to z = 4: Analysis of a Sample Selected in the Rest-Frame Near-Infrared with Spitzer
The Stellar Mass Assembly of Galaxies from z = 0 to z = 4: Analysis of a Sample Selected in the Rest-Frame Near-Infrared with Spitzer
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DOI：
10.1086/523690
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发表时间：
2007-09
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影响因子：
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通讯作者：
P. Pérez-González;G. Rieke;V. Villar;G. Barro;M. Blaylock;E. Egami;J. Gallego;A. Gil de Paz
中科院分区：
文献类型：
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作者：
P. Pérez-González;G. Rieke;V. Villar;G. Barro;M. Blaylock;E. Egami;J. Gallego;A. Gil de Paz
Using a sample of ~28,000 sources selected at 3.6-4.5 μm with Spitzer observations of the Hubble Deep Field North, the Chandra Deep Field South, and the Lockman Hole (surveyed area ~664 arcmin2), we study the evolution of the stellar mass content of the universe at 0 1012.0 M☉) assembled the bulk of their stellar content rapidly (in 1-2 Gyr) beyond z ∼ 3 in very intense star formation events (producing high specific SFRs). Galaxies with 1011.5 2.5 is dominated by optically faint (R≳ 25) red galaxies (distant red galaxies or BzK sources), which account for ~30% of the global population of galaxies, but contribute at least 60% of the cosmic stellar mass density. Bluer galaxies (e.g., Lyman break galaxies) are more numerous but less massive, contributing less than 50% of the global stellar mass density at high redshift.
