Galaxies structures in the field of radio galaxies at z > 0.6

Astronomy and Astrophysics – Astrophysics

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Radio Galaxies, Photometric, Polarimetric, And Spectroscopic Instrumentation, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Galaxy Clusters

Scientific paper

The optical-NIR photometrical data (V,I,J,H,K) and HST/WFPC2 morphological data of Stanford et al. 2002 are considered in order to analyze the galaxies structures in the field of four radio galaxies with redshifts z > 0.6. A multicolor photometry analysis of the galaxies was performed, searching for any increases of objects in the redshifts distribution and analyzing the location and center of a possible excess in the 3D distributions of galaxies in the studied fields. The presence of clustering features of galaxies with similar photometric redshifts is revealed in the field of 3C 220.1(z = 0.62), 3C 34 (z = 0.689) and 3C 210 (z = 1.169). Combining the multicolor photometry with HST morphological data the characterization of the populations of galaxies is also obtained.

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