93 citations · 103 across the 5 of their papers we have counts for
30 papers · 1 filter
A Small Step on the Long Road to Understanding the R-Stars: CNO Cycling in Candidate R-Star Progenitors
George Angelou, John Lattanzio
Recent work has proposed that a merger event between a red-giant and a He white dwarf may be responsible for the production of R-stars (Izzard et al, 2007). We investigate the prop…
Fluorine in carbon-enhanced metal-poor stars: a binary scenario
M. Lugaro, S. E. de Mink, R. G. Izzard +8
A super-solar fluorine abundance was observed in the carbon-enhanced metal-poor (CEMP) star HE 1305+0132 ([F/Fe] = +2.90, [Fe/H] = -2.5). We propose that this observation can be ex…
Structural and Nucleosynthetic Evolution of Metal-poor and Metal-free Low and Intermediate Mass Stars
Simon W. Campbell, John C. Lattanzio
We report on an investigation into stellar evolution and nucleosynthesis in the low and extremely low metallicity regime, including models of stars with a pure Big Bang composition…
Stellar Models and Yields of Asymptotic Giant Branch Stars
Amanda I. Karakas, John C. Lattanzio
We present stellar yields calculated from detailed models of low and intermediate-mass asymptotic giant branch (AGB) stars. We evolve models with a range of mass from 1 to 6Msun, a…
Compulsory Deep Mixing of 3He and CNO Isotopes in the Envelopes of low-mass Red Giants
Peter P. Eggleton, David S. P. Dearborn, John C. Lattanzio
Three-dimensional stellar modeling has enabled us to identify a deep-mixing mechanism that must operate in all low mass giants. This mixing process is not optional, and is driven b…
Abundances in intermediate-mass AGB stars undergoing third dredge-up and hot-bottom burning
J. A. McSaveney, P. R. Wood, M. Scholz +2
High dispersion near-infrared spectra have been taken of seven highly-evolved, variable, intermediate-mass (4-6 Msun) AGB stars in the LMC and SMC in order to look for C, N and O v…