Probing the Galactic Halo with RR Lyrae Stars. II. The Substructures of the Milky Way

F. Wang, H. -W. Zhang, X. -X. Xue +4

We identify substructures of the Galactic halo using 3,003 type $ab$ RR Lyraes (RRab) with 6D position-velocity information from the SDSS, LAMOST, and Gaia EDR3. Based on the infor…