We have analyzed galaxy properties in the neighborhood of 20 Ultra-Steep Spectrum Radio sources ( USS ) taken from the WISH catalog of De Breuck et al .
( 2002 ) .
Galaxies in these USS fields were identified in deep observations that were carried out in the K ^ { \prime } - band using the OSIRIS imager at the CTIO 4m telescope .
We find a statistically significant signal of clustering around our sample of USS .
The angular extension of the detected USS-galaxy clustering is \theta _ { c } \sim 20 \arcsec corresponding to a spatial scale \sim 120 h ^ { -1 } { kpc } , assuming the sources are at z \sim 1 in a \Omega _ { m } = 0.3 , \Omega _ { \Lambda } = 0.7 model universe .
These results are in agreement with those obtained by Best ( 2000 ) for radio galaxy-galaxy correlation , and Best et al .
( 2003 ) for radio-loud AGN-galaxy correlation .
We have also analyzed the light distribution of the galaxies by fitting Sérsic ’ s law profiles .
Our results show no significant dependence of the galaxy shape parameters on the projected distance to the USS .