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Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. III: Observations and Results for a Final Sample
K. B. Kwitter, R. B. C. Henry, J. B. Milingo
This paper is the fourth in a series whose purpose is to study the interstellar abundances of sulfur, chlorine, and argon in the Galaxy using a sample of 86 planetary nebulae. Here…
Sulfur, Chlorine, and Argon in Planetary Nebulae. IIA: Observations of a Southern Sample
J. B. Milingo, K. B. Kwitter, R. B. C. Henry +1
In this paper we present fully reduced and dereddened emission line strengths for a sample of 45 southern Type II planetary nebulae (PNe). The spectrophotometry for these PNe cover…
Sulfur, Chlorine, & Argon Abundances in Planetary Nebulae. IIB: Abundances in a Southern Sample
J. B. Milingo, R. B. C. Henry, K. B. Kwitter
We have undertaken a large spectroscopic survey of over 80 planetary nebulae with the goal of providing a homogeneous spectroscopic database between 3600-9600 Angstroms, as well as…