asteroseismology 1galactic chemical evolution 1milky way disc 1non-lte spectroscopy 1stellar abundances 1stellar ages 1
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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.SR2026
Gaia20fnr: A binary-lens microlensing event with full orbital motion revealed by four space telescopes
M. Wicker, Å. Wyrzykowski, M. Hundertmark +49
The microlensing event Gaia20fnr is a long-duration, non-caustic-crossing binary-lens event at high Galactic latitude. Triggered by a photometric rise detected by the Gaia space mi…