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We study the distribution of intragroup dark matter in small groups of darkmatter halos of galaxy-like size in a LCDM cosmology. These groups areidentified using a physical criterion and may be an appropriate representationof small galaxy groups. We quantify the amount of intragroup dark matter andcharacterize its distribution. We find that compact associations of halos, aswell as those intermediate and loose groups, have rather flat intragroup darkmatter profiles with logarithmic slopes of gamma ~0 and ~-0.2$, respectively.Hence, the intragroup dark matter of these halo systems does not follow thesame cuspy tendency that halos of galaxies have. In intermediate and loosegalaxy-size halo associations the intragroup matter tends to be <50% that ofthe total mass of the group, and in compact associations is <20% within theirgroup radius.

Intragroup dark matter distribution in small groups of halos in a LCDM cosmology