RR Lyrae variables in the central region of M54
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https://b2find.eudat.eu/dataset/6da25d72-9c0d-5142-85a3-c2ad27870d5e
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We have analyzed archival Hubble Space Telescope (HST) Wide Field Planetary Camera 2 (WFPC2) observations of the central region of the globular cluster M54. The 12 irregularly...
