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The M 4 Core Project with HST - III. Search for variable stars in the primary field

Nascimbeni, V; Bedin, L R; Heggie, D C; van den Berg, M; Giersz, M; Piotto, G; Brogaard, Karsten; Bellini, A; Milone, Antonino; Rich, R M; Pooley, D


We present the results of a photometric search for variable stars in the core of the Galactic globular cluster Messier 4 (M 4). The input data are a large and unprecedented set of deep Hubble Space Telescope WFC3 images (large programme GO-12911; 120 orbits allocated), primarily aimed at probing binaries with massive companions by detecting their astrometric wobbles. Though these data were not optimized to carry out a time-resolved photometric survey, their exquisite precision, spatial...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu930
Access Rights: Open Access


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