Image Details
Caption: Figure 8.
Left: the color-composite image of the simulated globular cluster NGC 2298. Right: considering the centroiding error, the residual distribution of WPDC-2P solutions for higher S/N threshold stars (S/N > 30) in the g-1 band detector. The central white circular region with a radius of 500 pixels is masked due to crowding caused by the extreme stellar density in the cluster core, which leads to centroiding errors exceeding 0.1 pixels.
© 2026. The Author(s). Published by the American Astronomical Society.