Non-LTE Effects in Berylium Abundances
T.P. Idiart (IAG, Brasil), F. Thevenin (OCA, France)
TL;DR
This paper investigates the impact of non-LTE effects on beryllium abundance measurements and finds that these corrections do not alter the established Be-Fe linear relation in metal-poor stars.
Contribution
It provides a re-evaluation of Be abundances considering non-LTE effects, confirming the stability of the Be-Fe relation in metal-poor stars.
Findings
Non-LTE corrections do not change the Be-Fe linear relation.
Re-calculated Be abundances with non-LTE effects.
The Be-Fe relation remains consistent in metal-poor stars.
Abstract
In this work we analyze the beryllium-iron chemical diagram from the point of view of non-LTE effects. Be abundances were re-calculated by considering non-LTE corrections in ionization equilibrium (logg) and Fe abundances ([Fe/H]). These corrections seem do not affect the linear relation between Be-Fe for metal-poor stars already found in the literature for LTE derived abundances.
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Taxonomy
TopicsAstro and Planetary Science · Stellar, planetary, and galactic studies · Atomic and Molecular Physics