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The discovery of the faintest known Milky Way satellite using UNIONS
Simon E. T. Smith, William Cerny, Christian R. Hayes +14
We present the discovery of Ursa Major III/UNIONS 1, the least luminous known satellite of the Milky Way, which is estimated to have an absolute V-band magnitude of $+2.2^{+0.4}_{-…
Ursa Major III/UNIONS 1: the darkest galaxy ever discovered?
Raphaël Errani, Julio F. Navarro, Simon E. T. Smith +1
The recently discovered stellar system Ursa Major III/UNIONS 1 (UMa3/U1) is the faintest known Milky Way satellite to date. With a stellar mass of and a…
Anisotropies in the spatial distribution and kinematics of dwarf galaxies in the Local Group and beyond
Isabel M. E. Santos-Santos, Julio F. Navarro, Alan McConnachie
The Local Group (LG) of galaxies is dominated by the M31 and Milky Way (MW) pair, a configuration which suggests that the mass distribution in the LG and its surroundings should be…