103 citations · 307 across the 6 of their papers we have counts for
6 papers
Characterisation of Galactic carbon stars and related stars from Gaia-EDR3
Carlos Abia, Patrick de Laverny, Merce Romero +1
We extend here a previous investigation on the characteristics of Galactic carbon stars using more accurate EDR3 astrometry measurements. Based on a much larger statistics, we conf…
The Gaia -ESO Survey: Lithium enrichment histories of the Galactic thick and thin disc
Xiaoting. Fu, D. Romano, A. Bragaglia +32
Lithium abundance in most of the warm metal-poor main sequence stars shows a constant plateau (A(Li)~2.2 dex) and then the upper envelope of the lithium vs. metallicity distributio…
Carbon and oxygen isotopic ratios in Arcturus and Aldebaran: Constraining the parameters for non convective mixing on the RGB
C. Abia, S. Palmerini, M. Busso +1
We re-analysed the carbon and oxygen isotopic ratios in the atmospheres of the two bright K giants Arcturus and Aldebaran. Previous determinations of their 16O/18O ratios showed a…
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…
The Chemical Composition of Carbon Stars II: The J-type stars
Carlos Abia, Jordi Isern
Abundances of Li, heavy elements and carbon isotope ratios have been measured in 12 J-type galactic carbon stars. The abundance analysis shows that in these stars the abundances of…
The role of gravitational supernovae on the galactic evolution of the LiBeB isotopes
C. Abia, J. Isern, U. Lisenfeld
The observed Be and B relationships with metallicity clearly support the idea that both elements have a primary origin and that are produced by the same class of objects. Spallatio…