From the 1 of 9 linked papers with an AI index.
9 papers
The T-GEX project. I. Stealth UV-bright Sun-like stars in the Galaxy as candidate contributors to the UV upturn
M. L. L. Dantas, D. Beltrán, R. E. Giribaldi +3
The authors created a catalog of 37 Sun-like stars by combining Gaia-ESO spectroscopy, Gaia DR3 astrometry, GALEX UV photometry, and infrared data, and identified UV‑bright sub‑pop…
Disentangling chemical evolution histories with phylogenetic trees
Rebeca Canales, Paula Jofré, Claudia Aguilera-Gómez +6
Chemical abundances encode the fossil record of galaxy evolution in a complex and diverse way that requires innovative approaches to reconstruct galactic histories. We investigate…
An ancient system hidden in the Galactic plane?
Federico Sestito, Emma Fernandez-Alvar, Rebecca Brooks +19
We analyse high signal-to-noise ESPaDOnS/CFHT spectra of 20 very metal-poor stars (VMP; [Fe/H]~) in the solar neighbourhood (within kpc), selected to be on planar or…
The Milky Way in motion: gauging stellar trajectories that shape the Galactic thin disc
M. L. L. Dantas, R. Smiljanic, R. S. de Souza +2
As stars traverse the Milky Way, their orbits evolve through perturbations that alter their orbital radii. These changes arise from two mechanisms: churning, which modifies angular…
Probing the origins. II. Unravelling lithium depletion and stellar motion: Intrinsic stellar properties drive depletion, not kinematics
M. L. L. Dantas, R. Smiljanic, D. Romano +4
In Paper I, we classified a stellar sample from the thin disc with a broad range in metallicity as being churned outward or inward, or blurred/undisturbed. In this paper (Paper II)…
Diving into dangerous tides: The impact of galaxy cluster tidal environments on satellite galaxy mass densities
Matias Blaña, Thomas H. Puzia, Yasna Ordenes-Briceño +8
Satellite galaxies endure powerful environmental tidal forces that drive mass stripping of their outer regions. Consequently, satellites located in central regions of galaxy cluste…