Abstract
There exists galaxy systems in the Local Universe formed by satellite dwarf galaxies orbiting a main one. The knowledge of the satellite distribution and their characteristics gives information about the formation and assembly processes of the galaxies in the Universe. In this paper, we analyze the satellite distribution around disk galaxies in cosmological hydrodynamical simulations, both in three-dimensions (3D) and in projection along random directions, mimicking observational strategies. It has been found that, at short 3D distances, the satellite orbits in rich systems (that is, systems with high number of satellites) have on average a polar distribution. The orbital distribution in projection at short distances between the satellite and its host shows a lack (excess) of minor-axis alignments for poor (rich) systems. Therefore, the alignments onto a virtual sky would appear mostly isotropic (i.e. no-preferred major or minor axis alignments), or even planar (i.e. major-axis alignments), depending the selected sample, in consistency with most observational analyses.
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