The MUNICs project -- a multicolor survey of distant galaxies

Abstract

The MUNICS project is an ongoing imaging survey designed to cover 3 sq. degrees in V,R,I,J,K'. We describe here partial results of the project concerning the clustering properties of K' < 19.5 galaxies in scales of 3.6'' to 63.0'' over an area of $\sim 800arcmi{n}^2$. We present K' data for a sample of 20 fields, five of which contain $z>0.5$ radio-loud quasars with steep spectra, eight contain $z>0.5$ radio-loud quasars with flat spectra and seven are high-galactic latitude fields with no quasars in them. The two-point angular correlation function for the total sample shows significant clustering at $\sim 5\sigma$ level of K'=19.5 galaxies. The correlation angle of the galaxies is ${\theta }_0=1.7^{\prime \prime }\pm 0.4^{\prime \prime }$ for K' < 19 mag and ${\theta }_0=1.0^{\prime \prime }\pm 0.2^{\prime \prime }$ for K' < 19.5 mag. When the correlation functions for the subsamples are considered, the mean $\omega (\theta )$ amplitude of the fields which contain steep-spectra $z>0.5$ radio-loud quasars is determined to be $\sim 2.0-2.5$ that of the high-galactic latitude fields.

4 pages, 2 figures. To appear in ``Wide Field Surveys in Cosmology'', eds. Y. Mellier and S. Colombi, Editions Frontieres (1998)