The Milky Way tomography with Subaru Hyper Suprime-Cam. I. Halo substructures
The Milky Way tomography with Subaru Hyper Suprime-Cam. I. Halo substructures
Abstract We analyze the photometric data in the Wide layer of the Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) over ∼1200 deg2 to uncover new halo substructures beyond the distance, D⊙ ∼ 30 kpc, from the Sun. For this purpose, we develop an isochrone filter for an old, metal-poor stellar system …