439 citations · 6.3k across the 124 of their papers we have counts for
10 papers · 1 filter
Fluorine in AGB Carbon Stars Revisited
C. Abia, A. Recio-Blanco, P. de Laverny +3
A reanalysis of the fluorine abundance in three Galactic AGB carbon stars (TX Psc, AQ Sgr and R Scl) has been performed from the molecular HF (1-0) R9 line at 2.3358 m. High-res…
Evolution and nucleosynthesis in low mass Asymptotic Giant Branch stars
S. Cristallo
People usually smile when astrophysicists assert that we are sons of the stars, but human life confirms this sentence: about 65% of the mass of our body is made up of oxygen, carbo…
AGB stars of the intermediate-age LMC cluster NGC 1846 II. Dredge up along the AGB
T. Lebzelter, M. T. Lederer, S. Cristallo +3
Aims: We investigate the change in the surface abundance of C during the evolution along the AGB, aiming to constrain third dredge-up models. Methods: High-resolution, near-…
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…
Molecular opacities for low-mass metal-poor AGB stars undergoing the Third Dredge Up
S. Cristallo, O. Straniero, M. T. Lederer +1
The concomitant overabundances of C, N and s-process elements are commonly ascribed to the complex interplay of nucleosynthesis, mixing and mass loss taking place in Asymptotic Gia…
A Method to Derive the Absolute Composition of the Sun, the Solar System and the Stars
L. Piersanti, O. Straniero, S. Cristallo
The knowledge of isotopic and elemental abundances of the pristine solar system material provides a fundamental test of galactic chemical evolution models, while the composition of…