asteroseismology 1galactic chemical evolution 1milky way disc 1non-lte spectroscopy 1stellar abundances 1stellar ages 1
From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.SR2026
The non-LTE abundances of magnesium and yttrium and asteroseismic ages for the chemical clock calibration
Å . Mikolaitis, G. TautvaiÅ¡ienÄ, E. PakÅ¡tienÄ +11
The authors determine magnesium and yttrium abundances using non‑LTE spectral synthesis and combine these with asteroseismic and isochrone ages to study how the [Y/Mg]‑age relation…
astro-ph.SR2025
Chemical composition of planetary hosts: II. Abundances of neutron-capture elements
A. Sharma, E. StonkutÄ, A. Drazdauskas +4
We present a study of neutron-capture element abundances (Sr, Y, Zr, Ba, La, Ce, Nd, Pr, and Eu) in a large and homogeneous sample of 160 F-, G-, and K-type planet-host stars locat…
astro-ph.SR2024
Chemical composition of planetary hosts: C, N, and -element abundances
A. Sharma, E. StonkutÄ, A. Drazdauskas +4
Accurate atmospheric parameters and chemical composition of planet-hosting stars are crucial for characterising exoplanets and understanding their formation and evolution. Our obje…