Search results for "Subgiant"

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The Gaia-ESO Survey: evidence of atomic diffusion in M67?

2018

Investigating the chemical homogeneity of stars born from the same molecular cloud at virtually the same time is very important for our understanding of the chemical enrichment of the interstellar medium and with it the chemical evolution of the Galaxy. One major cause of inhomogeneities in the abundances of open clusters is stellar evolution of the cluster members. In this work, we investigate variations in the surface chemical composition of member stars of the old open clusterM67 as a possible consequence of atomic diffusion effects taking place during the main-sequence phase. The abundances used are obtained from high-resolution UVES/FLAMES spectra within the framework of the Gaia-ESO S…

astro-ph.SRstars: abundancesastro-ph.GAMetallicityFOS: Physical sciencesAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysics01 natural sciencesevolution [Galaxy]Astronomi astrofysik och kosmologi0103 physical sciencesAstronomy Astrophysics and CosmologyAstrophysics::Solar and Stellar Astrophysicsstars: evolution010303 astronomy & astrophysicsStellar evolutionSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsPhysicsGalaxy: evolution010308 nuclear & particles physicsSubgiantMolecular cloudGalaxy: Abundanceabundances [Galaxy]Astronomy and AstrophysicsAstrophysics - Astrophysics of GalaxiesGalaxyInterstellar mediumStars: Abundanceabundances [stars]StarsAstrophysics - Solar and Stellar AstrophysicsSpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)evolution [stars]Galaxy: Abundances; Galaxy: Evolution; Stars: Abundances; Stars: Evolution; Astronomy and Astrophysics; Space and Planetary ScienceGalaxy: abundancesAstrophysics::Earth and Planetary AstrophysicsOpen cluster
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