691 citations · 14.9k across the 240 of their papers we have counts for
Showing 2012 · astro-ph.GAShow all
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astro-ph.GA2012★ 92 cited
Hubble Space Telescope Observations of an Outer Field in Omega Centauri: A Definitive Helium Abundance
I. R. King, L. R. Bedin, S. Cassisi +6
We revisit the problem of the split main sequence (MS) of the globular cluster omega Centauri, and report the results of two-epoch Hubble Space Telescope observations of an outer f…
astro-ph.GA2012★ 45 cited
C and N abundances of MS and SGB stars in NGC 1851
C. Lardo, A. P. Milone, A. F. Marino +6
We present the first chemical analysis of stars on the double subgiant branch (SGB) of the globular cluster NGC 1851. We obtained 48 Magellan IMACS spectra of subgiants and fainter…