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

The solar neighborhood contains disc stars that have recently crossed spiralarms in the Galaxy. We propose that boundaries in local velocity distributionsseparate stars that have recently crossed or been perturbed by a particular armfrom those that haven't. Ridges in the stellar velocity distributionsconstructed from the second Gaia data release trace orbits that could havetouched nearby spiral arms at apocentre or pericentre. The multiple ridges andarcs seen in local velocity distributions are consistent with the presence ofmultiple spiral features and different pattern speeds and imply that the outerGalaxy is flocculent rather than grand design.

Spiral arm crossings inferred from ridges in Gaia stellar velocity distributions