UV Luminosity Function at z~4, 3, and 2

Details UV Luminosity Function at z~4, 3, and 2 UV Luminosity Function at z~4, 3, and 2

Publishing date

2005-01-15

URL

arxiv.org/abs/astro-ph/0501314v1

Science

Astronomy and Astrophysics

Field

Astrophysics

Additional info

To appear in proceedings of the conference "Starbursts - from 30 Doradus to Lyman break galaxies" (IoA, Cambridge UK, Sep 2004

Type

Scientific paper

Abstract

We use very deep (R_lim=27) UGRI imaging to study the evolution of the faint end of the UV-selected galaxy luminosity function from z~4 to z~2. We find that the number of sub-L* galaxies increases from z~4 to z~3 while the number of bright ones appears to remain constant. We find no evidence for continued evolution to lower redshift, z~2. If real, this differential evolution of the luminosity function suggests that differentially comparing key diagnostics of dust, stellar populations, etc. as a function of z and L may let us isolate the key mechanisms that drive galaxy evolution at high redshift and we describe several such studies currently underway.

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