The HST–Gaia Near-infrared Astrometric Reference Frame Near the Milky Way Galactic Center

The HST–Gaia Near-infrared Astrometric Reference Frame Near the Milky Way Galactic Center

We present the first high-precision proper-motion catalog, tied to the International Celestial Reference System (ICRS), of infrared astrometric reference stars within R ≤ 25″ (1 pc) of the central supermassive black hole at the Galactic center (GC). This catalog contains ∼2900 sources in a highly ex...

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Bibliographic Details
Main Authors: Matthew W. Hosek Jr., Tuan Do, Gregory D. Martinez, Rebecca Lewis-Merrill, Andrea M. Ghez, Jessica R. Lu, Shoko Sakai, Jay Anderson
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Galactic center
Astrometry
Astronomical coordinate systems
Proper motions
Online Access:https://doi.org/10.3847/1538-4357/ade803
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