62 citations · 105 across the 6 of their papers we have counts for
6 papers
Co-spatial Long-slit UV/Optical Spectra of Ten Galactic Planetary Nebulae with HST/STIS II. Nebular Models, Central Star Properties and He+CNO Synthesis
R. B. C. Henry, B. Balick, R. J. Dufour +5
The goal of the present study is twofold. First, we employ new HST/STIS spectra and photoionization modeling techniques to determine the progenitor masses of eight planetary nebula…
What planetary nebulae tell us about helium and the CNO elements in Galactic bulge stars
James F. Buell
Thermally pulsing asymptotic giant branch (TP-AGB) models of bulge stars are calculated using a synthetic model. The goal is to infer typical progenitor masses and compositions by…
Thermally Pulsing Asymptotic Giant Branch Star Models and Globular Cluster Planetary Nebulae I: The Model
James F. Buell
Thermally pulsing asymptotic giant branch models of globular cluster stars are calculated using a synthetic model with the goal of reproducing the chemical composition, core masses…
Low and intermediate mass star yields: The evolution of carbon abundances
M. Gavilan, J. F. Buell, M. Molla
We present a set of low and intermediate mass star yields based on a modeling of the TP--AGB phase which affects the production of nitrogen and carbon. These yields are evaluated b…
Abundances in Planetary Nebulae An Autopsy of Low and Intermediate Mass Stars
James F. Buell
In this work I report on the results of synthetic thermally pulsing asymptotic giant branch models (TP-AGB) and compare the results to the abundance ratios in a sample of planetary…
On the Origin of Planetary Nebula K648 in Globular Cluster M15
J. F. Buell, R. B. C. Henry, E. Baron +1
We examine two scenarios for formation of the planetary nebula K648: a prompt scenario where the planetary nebula is ejected and formed immediately after a helium shell flash and a…