Add to ORKGInternational audienceA homogeneous spectroscopic analysis of unevolved and evolved stars in the metal-poor globular cluster NGC 6397 with FLAMES-UVES reveals systematic trends of stellar surface abundances that are likely caused by atomic diffusion. This finding helps to understand, among other issues, why the lithium abundances of old halo stars are significantly lower than the abundance found to be produced shortly after the Big Bang
The primordial lithium abundance inferred from WMAP and standard Big Bang nucleosysnthesis is approx...
Investigating the chemical homogeneity of stars born from the same molecular cloud at virtually the ...
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
The predicted primordial lithium abundance differs from observations of unevolved halo stars on the ...
International audienceWe present a homogeneous photometric and spectroscopic analysis of 18 stars al...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
International audienceWe describe our latest investigation of stars in NGC 6397, as an update to Kor...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
Context. Abundance trends in heavier elements with evolutionary phase have been shown to exist in th...
International audienceThe measurement of the cosmic microwave background has strongly constrained th...
International audienceDue to nuclear reactions within their interior, stars are the generators of th...
International audienceContext: Most globular clusters are believed to host a single stellar populati...
Context. Variations in chemical abundances with evolutionary phase have been identified in previous ...
Context. Most globular clusters are believed to host a single stellar population. They can thus be c...
The primordial lithium abundance inferred from WMAP and standard Big Bang nucleosysnthesis is approx...
Investigating the chemical homogeneity of stars born from the same molecular cloud at virtually the ...
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
The predicted primordial lithium abundance differs from observations of unevolved halo stars on the ...
International audienceWe present a homogeneous photometric and spectroscopic analysis of 18 stars al...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
International audienceWe describe our latest investigation of stars in NGC 6397, as an update to Kor...
Context. Atomic diffusion in stars can create systematic trends of surface abundances with evolution...
Context. Abundance trends in heavier elements with evolutionary phase have been shown to exist in th...
International audienceThe measurement of the cosmic microwave background has strongly constrained th...
International audienceDue to nuclear reactions within their interior, stars are the generators of th...
International audienceContext: Most globular clusters are believed to host a single stellar populati...
Context. Variations in chemical abundances with evolutionary phase have been identified in previous ...
Context. Most globular clusters are believed to host a single stellar population. They can thus be c...
The primordial lithium abundance inferred from WMAP and standard Big Bang nucleosysnthesis is approx...
Investigating the chemical homogeneity of stars born from the same molecular cloud at virtually the ...
Context. The prediction of the Planck-constrained primordial lithium abundance in the Universe is in...