74 citations · 158 across the 11 of their papers we have counts for
13 papers
Plato benchmark stars I. The initial benchmark sample
T. Merle, P. F. L. Maxted, O. L. Creevey +22
The ESA PLATO mission aims to detect and characterise Earth-size exoplanets orbiting bright, late-type stars using high-precision photometry and asteroseismology. Precise stellar p…
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…
Planetary architectures under the influence of a stellar binary
Milenne Ávila-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…
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…
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…
Host-star and exoplanet composition: Polluted white dwarf reveals depletion of moderately refractory elements in planetary material
Claudia Aguilera-Gómez, Laura K. Rogers, Amy Bonsor +6
Planets form from the same cloud of molecular gas and dust as their host stars. Confirming if planetary bodies acquire the same refractory element composition as their natal disc d…
The Pristine Inner Galaxy Survey (PIGS) IX. The largest detailed chemical analysis of very metal-poor stars in the Sagittarius dwarf galaxy
Federico Sestito, Sara Vitali, Paula Jofre +16
The most metal-poor stars provide valuable insights into the early chemical enrichment history of a system, carrying the chemical imprints of the first generations of supernovae. T…
Are Lithium-Rich Giants Binaries? A Radial Velocity Variability Analysis of 1,400 Giants
Matias Castro-Tapia, Claudia Aguilera-Gómez, Julio Chanamé
Low-mass giants with large amounts of lithium (Li) have challenged stellar evolution for decades. One of the possibilities usually discussed to explain them involves the interactio…
Evidence of extra-mixing in field giants as traced by lithium and carbon isotope ratio
Claudia Aguilera-Gómez, Matías I. Jones, Julio Chanamé
Although not predicted by standard stellar evolution, the surface abundance of light elements, such as lithium (Li), carbon, and nitrogen, changes during the red giant branch (RGB)…
Lithium in the lower red giant branch of 5 Galactic globular clusters
Claudia Aguilera-Gómez, Lorenzo Monaco, Alessio Mucciarelli +3
Lithium is one of the few elements produced during the Big Bang Nucleosynthesis in the early universe. Moreover, its fragility makes it useful as a proxy for stellar environmental…
Four Jovian planets around low-luminosity giant stars observed by the EXPRESS and PPPS
M. I. Jones, R. Wittenmyer, C. Aguilera-Gómez +12
We report the discovery of planetary companions orbiting four low-luminosity giant stars with M between 1.04 and 1.39 M. All four host stars have been independently…
Lithium abundance patterns of late-F stars: an in-depth analysis of the lithium desert
Claudia Aguilera-Gómez, Iván Ramírez, Julio Chanamé
We address the existence and origin of the lithium (Li) desert, a region in the Li - T_eff plane sparsely populated by stars. Here we analyze some of the explanations that have bee…