Kavli Affiliate: Huawei Zhang | First 5 Authors: Shan Zhang, Gaochao Liu, Yang Huang, Zongfei Lv, Sarah Ann Bird | Summary: We use 3653 (2661 RRab, 992 RRc) RR Lyrae stars (RRLs) with 7D (3D position, 3D velocity, and metallicity) information selected from SDSS, LAMOST, and Gaia EDR3, and divide the sample into two Oosterhoff […]
Continue.. Probing the Galactic halo with RR Lyrae stars — IV. On the Oosterhoff dichotomy of RR Lyrae stars