126 citations · 262 across the 7 of their papers we have counts for
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astro-ph.SR2016★ 17 cited
Chromospheric Models and the Oxygen Abundance in Giant Stars
A. K. Dupree, E. H. Avrett, R. L. Kurucz
Realistic stellar atmospheric models of two typical metal-poor giant stars in Omega Centauri that include a chromosphere influence the formation of optical lines of Oxygen I: the f…
astro-ph.SR2013★ 59 cited
Direct Evaluation of the Helium Abundances in Omega Centauri
A. K. Dupree, E. H. Avrett
A direct measure of the helium abundances from the near-infrared transition of He I at 1.08 micron is obtained for two nearly identical red giant stars in the globular cluster Omeg…
astro-ph.SR2009★ 49 cited
Mass Outflow from Red Giant Stars in M13, M15, and M92
Sz. Mészáros, E. H. Avrett, A. K. Dupree
Chromospheric model calculations of the Halpha line for selected red giant branch (RGB) and asymptotic giant branch (AGB) stars in the globular clusters M13, M15, and M92 are const…