The HST large programme on ω 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 ω Centauri. These two fields are located at ~12 arcmin 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 yr that were used to derive proper motions and to compute membership probabilities.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- August 2021
- DOI:
- 10.1093/mnras/stab1476
- arXiv:
- arXiv:2107.08726
- Bibcode:
- 2021MNRAS.505.3549S
- Keywords:
-
- techniques: photometric;
- catalogues;
- Hertzsprung-Russell and colour-magnitude diagrams;
- Population II;
- star clusters: individual: ω Centauri (NGC 5139);
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies;
- Astrophysics - Instrumentation and Methods for Astrophysics
- E-Print:
- 15 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/