The Milky Way nuclear star cluster
CO absorption line map of radial velocity. The coordinates are centred on Sgr A* and along the Galactic plane. The plus sign marks the position of Sgr A*. The velocity is in the local standard of rest, Galactic North is up, Galactic East is left.
Field of view and spatial distribution of early-type stars in the Milky Way nuclear star cluster. The black box shows the
KMOS 2.51 pc × 1.68 pc. The black cross shows the position of Sgr A*. The underlying image is from HST/NICMOS (Dong et al. 2011), aligned along Galactic coordinates. Yellow diamond symbols denote confirmed Wolf-Rayet (WR) and emission-line stars, cyan squares are stars with featureless spectra, green circles denote O/B stars. Red x-symbols indicate new young star candidates, blue plus-symbols probable foreground stars.