English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We present Li abundances for 73 stars in the metallicity range -3.5 < [Fe/H]< -1.0 using improved IRFM temperatures (Casagrande et al. 2010) with preciseE(B-V) values obtained mostly from interstellar NaI D lines, and high-qualityequivalent widths (errors ~ 3%). At all metallicities we uncover afine-structure in the Li abundances of Spite plateau stars, which we trace toLi depletion that depends on both metallicity and mass. Models including atomicdiffusion and turbulent mixing seem to reproduce the observed Li depletionassuming a primordial Li abundance ALi = 2.64 dex (MARCS models) or 2.72(Kurucz overshooting models), in good agreement with current predictions (ALi =2.72) from standard BBN. We are currently expanding our sample to have a bettercoverage of different evolutionary stages at the high and low metallicity ends,in order to verify our findings.

Observational signatures for depletion in the Spite plateau: solving the cosmological Li discrepancy?