3 papers
astro-ph2003
Element Yields of Intermediate-Mass Stars
R. B. C. Henry
Intermediate mass stars occupy the mass range between 0.8-8 solar masses. In this review, evolutionary models of these stars from numerous sources are compared in terms of their in…
astro-ph1998
Abundance Profiles in Disk Galaxies from Nebulae
R. B. C. Henry
Galactic and extragalactic abundance studies of H II regions, planetary nebulae, and supernova remnants are compiled and their implications briefly reviewed. Galaxy global metallic…
astro-ph1997
Planetary Nebula Abundances, Stellar Yields, And The Galactic Evolution of C-12 and N-14
R. B. C. Henry, K. B. Kwitter, J. Buell
A project which aims to understand the abundance patterns of He, C, N, O, Ne, S, and Ar for a small sample of planetary nebulae is described. Abundance ratios of O/H, C/O, and N/O…