3 papers
astro-ph.GA2026
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…
astro-ph.GA2025
That's so Retro: The Gaia-Sausage-Enceladus Merger Trajectory as the Origin of the Chemical Abundance Bimodality in the Milky Way Disk
James W. Johnson, Diane K. Feuillet, Ana Bonaca +1
The Milky Way (MW) is thought to have experienced a 3:1 mass-ratio merger event near redshift with a significantly retrograde trajectory. This now-disrupted dwarf ga…
astro-ph.SR2025
Ariel stellar characterisation III. Fast rotators and new FGK stars in the Ariel Mission Candidate Sample
M. Tsantaki, L. Magrini, C. Danielski +15
The next mission dedicated to the study of planetary atmospheres is the Ariel space mission, planned for launch in 2029, which will observe a variety of planetary systems belonging…