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 report the discovery of an unusual quasar, 2226–3905, found during a survey of quasar candidates. The ultraviolet spectrum (intrinsic frame) of the object is dominated by extremely strong Fe ii emission. The emission lines are narrow (typical FWHM ∼ 2150 km s−1) and show little trace of their usually broad wings. Ciii] λ1909 appears to be blended with an Fe iii multiplet and we identify Fe iii ...

A quasar with ultrastrong, ultraviolet Fe II emission