From the 1 of 4 linked papers with an AI index.
4 papers
Divergent Evolution of Radial Metallicity Gradients in the Thin and Thick Disks of the Milky Way
Weixiang Sun, Gaohuan Long, Hui Li +6
The paper analyzes radial metallicity gradients in the Milky Way's thin and thick disks using over 200,000 red clump stars, finding a strong negative gradient in the thin disk that…
The Kinematic Signature of the Warp and Waves in the Milky Way Disk
Weixiang Sun, Han Shen, Biwei Jiang +1
Using over 170,000 red clump (RC) stars selected from LAMOST and APOGEE, we conduct a detailed analysis of the stellar as a function of (or ) across differen…
The Age-velocity Dispersion Relations of the Galactic Disk as Revealed by the LAMOST-Gaia Red Clump Stars
Weixiang Sun, Han Shen, Biwei Jiang +1
Using nearly 230,000 red clump (RC) stars selected from LAMOST and Gaia, we conduct a comprehensive analysis of the stellar age-velocity dispersion relations (AVRs) for various dis…
The Galactic Disk North-south Asymmetry in Metallicity May Be A New Tracer for the Disk Warp
Weixiang Sun, Han Shen, Biwei Jiang +1
Galactic disk warp has been widely characterized by stellar distributions and stellar kinematics but has not been traced by stellar chemistry. Here, we use a sample with over 170,0…