The MUNICS Project: Galaxy Assembly at 0 < z < 1

Details The MUNICS Project: Galaxy Assembly at 0 < z < 1 The MUNICS Project: Galaxy Assembly at 0 < z < 1

2003-12-12

arxiv.org/abs/astro-ph/0312345v1

Astronomy and Astrophysics

Astrophysics

6 pages, 4 figures. To appear in the proceedings of the conference "Multiwavelength Mapping of Galaxy Formation and Evolution"

Scientific paper

10.1007/10995020_38

We summarize the results obtained from the MUNICS K-band selected Galaxy survey thus far. MUNICS is a wide-area, medium-deep, photometric and spectroscopic survey selected in the K band, targeting randomly-selected high Galactic latitude fields. It covers an area of roughly one square degree in the K and J bands with optical imaging in the I, R, V, and B bands in 0.5 square degrees. The MUNICS photometric survey is complemented by spectroscopic follow-up observations down to limits of K<17.5 (wide area) and K<19.5 (smaller area). We have obtained 593 redshifts to this date. Here, we present results concerning the evolution of the K-band luminosity function to z ~ 1, both from the full photometric redshift sample and from the spectroscopic sample alone. We also report on new results concerning the evolution of the stellar mass function to z ~ 1. We fit stellar population synthesis models to our multicolor photometry to obtain M/L values for each source. We detect significant evolution in the stellar mass function and we find that more massive systems evolve faster in number density than less massive systems. We also measure the evolution of the total stellar mass density of the universe and find that about half the present day stellar mass formed since z ~ 1.

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