147 citations · 603 across the 19 of their papers we have counts for
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The Chemical Evolution Of High Z Galaxies From The Relative Abundances Of N, Si, S, And Fe In Damped Lyman Alpha Systems
R. B. C. Henry, Jason X. Prochaska
Abundances of N, Si, S, and Fe for 45 damped Lyman alpha systems (DLAs) have been compiled and detailed one-zone chemical evolution models have been constructed for 30 of them. Ass…
The N/O Plateau of Blue Compact Galaxies: Monte Carlo Simulations of the Observed Scatter
R. B. C. Henry, A. Nava, Jason X. Prochaska
Chemical evolution models and Monte Carlo simulation techniques have been combined for the first time to study the distribution of blue compact galaxies on the N/O plateau. Each si…
ELSA: An Integrated, Semi-Automated Nebular Abundance Package
M. D. Johnson, J. S. Levitt, R. B. C. Henry +1
We present ELSA, a new modular software package, written in C, to analyze and manage spectroscopic data from emission-line objects. In addition to calculating plasma diagnostics an…
Sulfur, Chlorine, and Argon Abundances in Planetary Nebulae. IV: Synthesis and the Sulfur Anomaly
R. B. C. Henry, K. B. Kwitter, Bruce Balick
We have compiled a large sample of O, Ne, S, Cl, and Ar abundances which have been determined for 85 galactic planetary nebulae in a consistent and homogeneous manner using spectra…
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, & 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…