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astro-ph.GA2025
Characterizing the astrometric quality of AGNs in Gaia-CRF3
Shilong Liao, Qiqi Wu, Ye Ding +2
Active Galactic Nuclei (AGNs), owing to their great distances and compact sizes, serve as fundamental anchors for defining the celestial reference frame. With about 1.9 million AGN…
astro-ph.SR2025
Analysis of the Gaia Data Release 3 parallax bias at bright magnitudes
Ye Ding, Shilong Liao, Shangyu Wen +1
The combination of visual and spectroscopic orbits in binary systems enables precise distance measurements without additional assumptions, making them ideal for examining the paral…