SIMBAD references

In this paper we present a test case for the existence of a core in the density distribution of dark halos around galaxies. DDO 47 has a rotation curve that increases linearly from the first data point, at 300pc, up to the last one, at 5 kpc. This profile implies the presence of a (dark) halo with an (approximately) constant density over the region mapped by data. This evidences the inability of standard Λ Cold Dark Matter scenario to account for the dark matter distribution around galaxies, and points toward the existence of an intriguing halo scale-length of homogeneity. This work adds up to the results of Blais-Ouellette et al. (2003, in press, astro-ph/0203146), Trott & Webster (2002MNRAS.334..621T), Binney & Evans (2001MNRAS.327L..27B), de Blok & Bosma (2002A&A...385..816D) and Bottema (2002A&A...388..809B) in suggesting that at galactic scales CDM theory should incorporate, as an intrinsic property, a ``density core" feature.