8 papers
Dynamical constraints on planet engulfment as the origin of lithium enhancement in TOI-5882
C. Charalambous, C. Aguilera-Gómez, S. Urrutia +1
As stars evolve off the main sequence, changes in stellar structure can alter the dynamical architecture of planetary systems and, in some cases, lead to planet engulfment events c…
Reconstructing chemical enrichment pathways in disc galaxies: A phylogenetic approach
Brian Tapia-Contreras, Patricia B. Tissera, Emanuel Sillero +11
Phylogenetic methods, traditionally used in biology to trace the evolutionary relationships among species, are emerging as a powerful framework to reconstruct evolutionary processe…
Gaia FGK Benchmark Stars: Selecting Infrared Lines for Abundance Determination
Scarlet Elgueta, Paula Jofré, Claudia Aguilera-Gómez +7
The advent of new and more powerful infrared spectrographs has significantly motivated the advancement of the study of atomic and molecular line lists and stellar atmosphere models…
Gaia FGK Benchmark Stars: spectral library, metallicities and abundances of and Fe-peak elements of the third version
L. Casamiquela, C. Soubiran, P. Jofré +14
The accurate determination of chemical abundances in stars plays a pivotal role in understanding stellar structure and evolution, nucleosynthesis, and the chemical enrichment histo…
Planetary architectures under the influence of a stellar binary
Milenne Ãvila-Bravo, Carolina Charalambous, Claudia Aguilera-Gómez
Context. The presence of a stellar companion can strongly influence the architecture and long-term stability of planetary systems. Motivated by the discovery of exoplanets exhibiti…
Studying stellar populations in Omega Centauri with phylogenetics
P. Jofré, C. Aguilera-Gómez, P. Villarreal +14
The nature and formation history of our Galaxy's largest and most enigmatic stellar cluster, known as Omega Centauri (ocen) remains debated. Here, we offer a novel approach to dise…