%0 Journal Article
%T The Angular Clustering of Galaxy Pairs
%A Leopoldo Infante
%A Michael A. Strauss
%A Neta A. Bahcall
%A Gillian R. Knapp
%A Robert H. Lupton
%A Rita S. J. Kim
%A Michael S. Vogeley
%A J. Brinkmann
%A Istvan Csabai
%A Masataka Fukugita
%A Gregory Hennessy
%A Zeljko Ivezic
%A Don Q. Lamb
%A Brian C. Lee
%A Jeffrey R. Pier
%A D. G. York
%J Physics
%D 2001
%I arXiv
%R 10.1086/338424
%X We identify close pairs of galaxies from 278 deg^2 of Sloan Digital Sky Survey commissioning imaging data. The pairs are drawn from a sample of 330,041 galaxies with 18 < r^* < 20. We determine the angular correlation function of galaxy pairs, and find it to be stronger than the correlation function of single galaxies by a factor of 2.9 +/- 0.4. The two correlation functions have the same logarithmic slope of 0.77. We invert Limber's equation to estimate the three-dimensional correlation functions; we find clustering lengths of r_0= 4.2 +/- 0.4 h^{-1} Mpc for galaxies and 7.8 +/- 0.7 h^{-1} Mpc for galaxy pairs. These results agree well with the global richness dependence of the correlation functions of galaxy systems.
%U http://arxiv.org/abs/astro-ph/0111019v1