862 citations · 5.2k across the 91 of their papers we have counts for
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astro-ph2006★ 108 cited
s-Process Abundances in Planetary Nebulae
Brian Sharpee, Yong Zhang, Robert Williams +5
The s-process should occur in all but the lower mass progenitor stars of planetary nebulae, and this should be reflected in the chemical composition of the gas which is expelled to…
astro-ph2006★ 26 cited
Optical recombination lines as probes of conditions in planetary nebulae
X. -W. Liu
Since the last IAU symposium on planetary nebulae (PNe), several deep spectroscopic surveys of the relatively faint optical recombination lines (ORLs) emitted by heavy element ions…