THE COMPOSITION OF PLANET BUILDING BLOCKS IN THE GALAXY
Langue
en
Communication dans un congrès
Ce document a été publié dans
Proceedings of SF2A 2022, Proceedings of SF2A 2022, Journées 2022 de la Société Française d’Astronomie & d’Astrophysique (SF2A)., 2022-06-07, Besançon. 2022-12
Résumé en anglais
Our Galaxy is composed of different stellar populations with varying chemical abundances, which are thought to imprint the composition of planet building blocks (PBB). We aim to determine the PBB metallicity trends by using ...Lire la suite >
Our Galaxy is composed of different stellar populations with varying chemical abundances, which are thought to imprint the composition of planet building blocks (PBB). We aim to determine the PBB metallicity trends by using the GALAH large spectroscopic survey. We assess the reliability of the composition of PBB as determined with a propagation error study. Despite of the large uncertainties on molecular mass fractions, we find robust overall trends with metallicity.< Réduire
Mots clés en anglais
Galaxy
Stellar content
Stellar abundances
Planetary systems
Origine
Importé de halUnités de recherche