20 citations · 66 across the 8 of their papers we have counts for
8 papers
Chemical Evolution of R-process Elements in Stars (CERES). III. Chemical abundances of neutron capture elements from Ba to Eu
L. Lombardo, C. J. Hansen, F. Rizzuti +11
The chemical abundances of elements such as barium and the lanthanides are essential to understand the nucleosynthesis of heavy elements in the early Universe as well as the contri…
Chemical Evolution of R-process Elements in Stars (CERES): IV. An observational run-up of the third r-process peak with Hf, Os, Ir, and Pt
Arthur Alencastro Puls, Jan Kuske, Camilla Juul Hansen +8
The third r-process peak (Os, Ir, Pt) is poorly understood due to observational challenges, with spectral lines located in the blue or near-ultraviolet region of stellar spectra. T…
Chemical Evolution of R-process Elements in Stars (CERES) II. The impact of stellar evolution and rotation on light and heavy elements
Raphaela Fernandes de Melo, Linda Lombardo, Arthur Alencastro Puls +4
Context. Carbon, nitrogen, and oxygen are the most abundant elements throughout the universe, after hydrogen and helium. Studying these elements in low-metallicity stars can provid…
Stellar Models are Reliable at Low Metallicity: An Asteroseismic Age for the Ancient Very Metal-Poor Star KIC 8144907
Daniel Huber, Ditte Slumstrup, Marc Hon +15
Very metal-poor stars ([Fe/H]<-2) are important laboratories for testing stellar models and reconstructing the formation history of our galaxy. Asteroseismology is a powerful tool…
The odd bunch: chrono-chemo-dynamics of sixteen unusual stars from Kepler
Arthur Alencastro Puls, Luca Casagrande, Stephanie Monty +4
In this study we combine asteroseismic, spectroscopic and kinematic information to perform a detailed analysis of a sample of 16 stars from the Kepler field. Our selection focuses…
Chemo-dynamics and asteroseismic ages of seven metal-poor red giants from the Kepler field
Arthur Alencastro Puls, Luca Casagrande, Stephanie Monty +5
In this work we combine information from solar-like oscillations, high-resolution spectroscopy and Gaia astrometry to derive stellar ages, chemical abundances and kinematics for a…
Chemical abundances in the metal-intermediate GC NGC 6723
Juliana Crestani, Alan Alves-Brito, Giuseppe Bono +2
We have performed a detailed spectral analysis of the inner halo Galactic globular cluster (GC) NGC 6723 using high resolution (R 22000-48000) spectra for for eleven red g…
Chemical analysis of eight giant stars of the globular cluster NGC 6366
Arthur A. Puls, Alan Alves-Brito, Fabíola Campos +2
The metal-rich Galactic globular cluster NGC 6366 is the fifth closest to the Sun. Despite its interest, it has received scarce attention, and little is known about its internal st…