Galaxy clustering shows segregation effects with galaxy type , color and luminosity , which bring clues on the relationship with the underlying density field .
We explore these effects among the populations of giant and dwarf galaxies detected in the ESO-Sculptor survey .
We calculate the spatial two-point auto and cross-correlation functions for the 765 galaxies with R _ { \mathrm { c } } \leq 21.5 and 0.1 \leq z \leq 0.51 and for subsets by spectral type and luminosity .
At separation of 0.3 h ^ { -1 } Mpc , pairs of early-type galaxies dominate the clustering over all the other types of pairs .
At intermediate scales , 0.3 - 5 h ^ { -1 } Mpc , mixed pairs of dwarf and giant galaxies contribute equally as pairs of giant galaxies , whereas the latter dominate at \simeq 10 h ^ { -1 } Mpc .
Moreover , the correlation functions per galaxy type display the expected transition between the 1-halo and 2-halo regimes in the scenario of hierarchical merging of dark matter halos .
The 1-halo component of the early-type galaxies largely outdoes that for the late spiral galaxies , and that for the dwarf galaxies is intermediate between both .
In contrast , the 2-halo component of the early-type galaxies and late spiral galaxies are comparable , whereas that for the dwarf galaxies is consistent with null clustering .
We link the clustering segregation of the early-type and late spiral galaxies to their spatial distribution within the underlying dark matter halos .
The early-type galaxies are preferentially located near the centers of the most massive halos , whereas late spiral galaxies tend to occupy their outskirts or the centers of less massive halos .
This appears to be independent of luminosity for the early-type galaxies , whereas faint late spiral galaxies might reside in less dense regions than their bright analogs .
The present analysis also unveils unprecedented results on the contribution from dwarf galaxies : at the scale at which they significantly cluster inside the halos ( \leq 0.3 h ^ { -1 } Mpc ) , they are poorly mixed with the late spiral galaxies , and appear preferentially as satellites of early-type galaxies .