activity
19972023
most citedSulfur, Chlorine, and Argon Abundances in Planetary Nebulae. IV: Synthesis and the Sulfur Anomaly

147 citations · 627 across the 24 of their papers we have counts for

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astro-ph.CO2012★ 53 cited

Abundances of PNe in the Outer Disk of M31

Karen B. Kwitter, Emma M. M. Lehman, Bruce Balick +1

We present spectroscopic observations and chemical abundances of 16 planetary nebulae (PNe) in the outer disk of M31. The [O III] 4363 line is detected in all objects, allowing a d…