36 citations · 162 across the 9 of their papers we have counts for
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astro-ph.GA2022★ 18 cited
Helium line emissivities for nebular astrophysics
G. Del Zanna, P. J. Storey
We present the results of several collisional-radiative models describing optically-thin emissivities of the main lines in neutral helium formed by recombination, for a grid of ele…
astro-ph.GA2012★ 36 cited
Plasma Diagnostics for Planetary Nebulae and H II Regions Using the N II and O II Optical Recombination Lines
Ian A. McNabb, Xuan Fang, Xiaowei Liu +2
We carry out plasma diagnostic analyses for 123 planetary nebulae (PNe) and 42 H II regions using the N II and O II optical recombination lines (ORLs). New effective recombination…