The Kinematic Signature of the Warp and Waves in the Milky Way Disk

• Published in: The Astrophysical journal Vol. 985; no. 2; pp. 232 - 238
• Main Authors: Sun, Weixiang, Shen, Han, Jiang, Biwei, Liu, Xiaowei
• Format: Journal Article
• Language: English
• Published: The American Astronomical Society 01.06.2025; IOP Publishing
• Subjects: Galaxy dynamics; Galaxy kinematics; Galaxy structure; Milky Way disk; Stellar abundances; Stellar kinematics

Using over 170,000 red clump (RC) stars selected from LAMOST and APOGEE, we conduct a detailed analysis of the stellar V Z as a function of L Z (or R g ) across different ϕ bins for various disk populations. The V Z of the whole RC sample stars exhibits a wavelike pattern superimposed on an exponent...