Discovery of Astrometric Accelerations by Dark Companions in the Globular Cluster ω Centauri

Discovery of Astrometric Accelerations by Dark Companions in the Globular Cluster ω Centauri

We present results from the search for astrometric accelerations of stars in ω Centauri using 13 yr of regularly scheduled Hubble Space Telescope WFC3/UVIS calibration observations in the cluster core. The high-precision astrometry of ∼160,000 sources was searched for significant deviations from lin...

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Bibliographic Details
Main Authors: Imants Platais, Johannes Sahlmann, Léo Girardi, Vera Kozhurina-Platais, Sebastian Kamann, Dimitri Pourbaix, Florence Wragg, Gerard Lemson, Arik Mitschang
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Subjects:
Astrometry
Globular star clusters
Hubble Space Telescope
HST photometry
Binary stars
White dwarf stars
Online Access:https://doi.org/10.3847/1538-4357/ad167c

Internet

https://doi.org/10.3847/1538-4357/ad167c

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