The HST large programme on ω Centauri - IV. Catalogue of two external fields

M. Scalco, A. Bellini, L. R. Bedin, J. Anderson, P. Rosati, M. Libralato, M. Salaris, E. Vesperini, D. Nardiello, D. Apai, A. J. Burgasser, R. Gerasimov

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)3549-3561
Number of pages13
JournalMonthly Notices of the Royal Astronomical Society
Volume505
Issue number3
DOIs
StatePublished - Aug 1 2021

Keywords

  • Hertzsprung-Russell and colour-magnitude diagrams
  • Population II
  • catalogues
  • star clusters: individual: ω Centauri (NGC 5139)
  • techniques: photometric

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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