Abstract
We investigate the use of AllWISE as an infrared celestial reference frame through comparison with Gaia DR3. The analysis considers approximately 570,000 extragalactic sources and a full sample of 273 million sources, examining systematic differences in positions and proper motions.
Jia-Cheng Liu
Professor
My research interests include theoretical mechanics, space astrometry, and astronomical reference systems.
Niu Liu
Assistant Professor
My research focuses on astronomical reference systems, VLBI astrometry, space astrometry, and pulsar astrometry.
Zi Zhu
Professor
My research focuses on astrometric methods, astronomical reference systems, and Galactic astronomy.
Jun Yao
PhD Graduate (2026)
My research focuses on the alignment of celestial reference frames realized by VLBI and Gaia, and planetary ephemeris reference frames.
Ibnu Nurul Huda
Former Postdoctoral Researcher
My research interests include Earth rotation, VLBI data analysis, reference systems, Earth tides, and celestial mechanics.
Zhen-Wei Wang
PhD Student
My research interests include celestial reference frames, astrometric catalogues, extragalactic sources, and VLBI astrometry.