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Updated stellar yields from asymptotic giant branch models
An updated grid of stellar yields for low- to intermediate-mass thermally pulsing asymptotic giant branch (AGB) stars is presented. The models cover a range in metallicity Z = 0.02, 0.008, 0.004 and
The evolution of isotope ratios in the Milky Way Galaxy
Isotope ratios have opened a new window into the study of the details of stellar evolution, supernovae, and galactic chemical evolution. We present the evolution of the isotope ratios of elemental
Stellar Models and Yields of Asymptotic Giant Branch Stars
Abstract 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 6 M⊙, and initial
Quantifying the uncertainties of chemical evolution studies II. Stellar yields
Context. Galactic chemical evolution models are useful tools for interpreting the large body of high-quality observational data on the chemical composition of stars and gas in galaxies that have
The Dawes Review 2: Nucleosynthesis and Stellar Yields of Low- and Intermediate-Mass Single Stars
Abstract The chemical evolution of the Universe is governed by the chemical yields from stars, which in turn are determined primarily by the initial stellar mass. Even stars as low as 0.9 M⊙ can, at
Stellar yields from metal-rich asymptotic giant branch models
We present new theoretical stellar yields and surface abundances for three grids of metal-rich asymptotic giant branch (AGB) models. Post-processing nucleosynthesis results are presented for stellar
On the source of the dust extinction in type Ia supernovae and the discovery of anomalously strong Na i absorption
High-dispersion observations of the Na I D λλ5890, 5896 and K I λλ7665, 7699 interstellar lines, and the diffuse interstellar band at 5780 A in the spectra of 32 Type Ia supernovae are used as an
Parameterising the Third Dredge-up in Asymptotic Giant Branch Stars
Abstract We present new evolutionary sequences for low and intermediate mass stars (1−6M ⊙) for three different metallicities, Z = 0.02, 0.008, and 0.004. We evolve the models from the pre-main
A Large C+N+O Abundance Spread in Giant Stars of the Globular Cluster NGC 1851
Abundances of C, N, and O are determined in four bright red giants that span the known abundance range for light (Na and Al) and s-process (Zr and La) elements in the globular cluster NGC 1851. The
Heavy Element Abundances in Giant Stars of the Globular Clusters M4 and M5
We present a comprehensive abundance analysis of 27 heavy elements in bright giant stars of the globular clusters M4 and M5 based on high-resolution, high signal-to-noise ratio spectra obtained with