The HST large programme on omega Centauri -- IV. catalogue of two external fields

Abstract

In the fourth paper of this series, we present -- and publicly release -- the state-of-the-art catalogue and atlases for the two remaining parallel fields observed with the Hubble Space Telescope for the large programme on omega Centauri. These two fields are located at ~12' from the centre of the globular cluster (in the West and South-West directions) and were imaged in filters from the ultraviolet to the infrared. Both fields were observed at two epochs separated by about 2 years that were used to derive proper motions and to compute membership probabilities.

arXiv comment15 pages, 11 figures (low resolution). Electronic on-line material at this url https://web.oapd.inaf.it/bedin/files/PAPERs_eMATERIALs/wCen_HST_LargeProgram/P04/ ; Accepted for publication in MNRAS on 2021 May 18th, available at this url https://ui.adsabs.harvard.edu/abs/2021MNRAS.505.3549S/abstract

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• Gaia Focused Product Release: Sources from Service Interface Function image analysis -- Half a million new sources in omega Centauri
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• Harnessing the Hubble Space Telescope Archives: A Catalogue of 21,926 Interacting Galaxies
• High-precision astrometry with VVV -- II. A near-infrared extension of Gaia into the Galactic plane
• Revisited parameters for the twin bulge globular clusters NGC 6528 and NGC 6553
• JWST observations of 47 Tucanae: I. The low-mass main sequence down to the hydrogen-burning limit
• The mass functions of multiple stellar populations in 47 Tucanae