205 citations · 1.5k across the 43 of their papers we have counts for
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astro-ph.SR2018★ 33 cited
High-resolution abundance analysis of four red giants in the globular cluster NGC 6558
B. Barbuy, L. Muniz, S. Ortolani +8
NGC 6558 is a bulge globular cluster with a blue horizontal branch (BHB), combined with a metallicity of [Fe/H]~-1.0. It is similar to HP 1 and NGC 6522, which could be among the o…
astro-ph.SR2018★ 48 cited
Ages of the Bulge globular clusters NGC 6522 and NGC 6626 (M28) from HST Proper-motion-cleaned Color-Magnitude Diagrams
L. O. Kerber, D. Nardiello, S. Ortolani +5
Bulge globular clusters (GCs) with metallicities [Fe/H] <~ -1.0 and blue horizontal branches are candidates to harbor the oldest populations in the Galaxy. Based on the analysis of…