583 citations · 5.8k across the 67 of their papers we have counts for
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astro-ph.SR2009★ 461 cited
The ACS Survey of Galactic Globular Clusters. IX. Horizontal Branch Morphology and the Second Parameter Phenomenon
Aaron Dotter, Ata Sarajedini, Jay Anderson +11
The horizontal branch (HB) morphology of globular clusters (GCs) is most strongly influenced by metallicity. The second parameter phenomenon acknowledges that metallicity alone is…
astro-ph.GA2009★ 12 cited
Metallicities and ages of stellar populations at a high Galactic latitude field
Michael H. Siegel, Yuksel Karatas, I. Neill Reid
We present an analysis of data from the Selected Area SA 141. By applying recalibrated methods of measuring ultraviolet excess (UVX), we approximate abundances and absolute…