The Evolving Mid-infrared Galaxy Luminosity Functions From AGES

Astronomy and Astrophysics – Astronomy

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Scientific paper

We present the galaxy luminosity functions in the Spitzer/IRAC C1-C4 bands from the AGN and Galaxy Evolution Survey (AGES). AGES is an 8 square degree survey with the multi-wavelength coverage from infrared to X-rays. The IRAC samples contain 4000-3000 galaxies for the C1-C4 bands in the redshift range of z < 1. We fit the luminosity functions both with the 1/Vmax and the parametric maximum likelihood methods. We found significant luminosity function evolutions for the C1-C4 bands that can be fitted as evolutions of the L* of -0.8 - -2.2 mag per unit redshift. We also measured the luminosity functions separately for early and late type galaxies.

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