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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We analyze ages and metallicities for some 5.5 million stars distributedthroughout the Large Magellanic Cloud (LMC) main body, obtained from CCDWashington CT1 photometry. We produce a comprehensive field starAge-Metallicity Relationship (AMR) from the earliest epoch until ~1 Gyr ago.This AMR reveals that the LMC has not evolved chemically as either a closed-boxor bursting system, exclusively, but as a combination of both scenarios thathave varied in relative strength over the lifetime of the galaxy, although thebursting model falls closer to the data in general. Furthermore, while old andmetal-poor field stars have been preferentially formed in the outer disk,younger and more metal-rich stars have mostly been formed in the inner disk,confirming an outside-in formation. We provide evidence for the formation ofstars between 5 and 12 Gyr, during the cluster age gap, although chemicalenrichment during this period was minimal. We find no significant metallicitygradient in the LMC. We also find that the range in the metallicity of an LMCfield has varied during the lifetime of the LMC. In particular, we find only asmall range of the metal abundance in the outer disk fields, whereas an averagerange of Delta([Fe/H]) = +0.3\pm0.1 dex appears in the inner disk fields.

The age-metallicity relationship of the Large Magellanic Cloud field star population from wide-field Washington photometry