Cartography of Triangulum-Andromeda using SDSS stars
Cartography of Triangulum-Andromeda using SDSS stars
The outer Galactic halo is home to a number of substructures which still have an uncertain origin, but most likely are remnants of former interactions between the Galaxy and its former satellites. Triangulum-Andromeda (TriAnd) is one of these halo substructures, found as an overdensity of Two Micron All Sky Survey …