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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

We present the results of a deep photometric survey performed with FORS1@VLTaimed at investigating the complex Main Sequence structure of the stellarsystem omega Centauri. We confirm the presence of a double Main Sequence andidentify its blue component (bMS) over a large field of view up to 26' from thecluster center. We found that bMS stars are significantly more concentratedtoward the cluster center than the other "normal" MS stars. The bMS morphologyand its position in the CMD have been used to constrain the heliumoverabundance required to explain the observed MS morphology.Comment: 15 pages, 10 figures, accepted for publication by Ap

Deep FORS1 Observations of the Double Main Sequence of ω Centauri