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Comparing the white dwarf cooling sequences in 47 tuc and NGC 6397

Richer, Harvey B; Goldsbury, Ryan; Heyl, Jeremy; Hurley, Jarrod; Dotter, Aaron; Kalirai, Jason S; Woodley, Kristin A; Fahlman, Gregory G; Rich, R M; Shara, Michael M


Using deep Hubble Space Telescope imaging, color-magnitude diagrams are constructed for the globular clusters 47 Tuc and NGC 6397. As expected, because of its lower metal abundance, the main sequence of NGC 6397 lies well to the blue of that of 47 Tuc. A

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1088/0004-637X/778/2/104


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