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

Lyman-alpha emitting galaxies can be used to study cosmological reionization,because a neutral intergalactic medium scatters Lyman-alpha photons intodiffuse halos whose surface brightness falls below typical survey detectionlimits. Here we present the Lyman-alpha emitting galaxy LAEJ095950.99+021219.1, identified at redshift z=6.944 in the COSMOS field usingnarrowband imaging and followup spectroscopy with the IMACS instrument on theMagellan I Baade telescope. With a single object spectroscopically confirmed sofar, our survey remains consistent with a wide range of IGM neutral fraction atredshift seven, but further observations are planned and will help clarify thesituation. Meantime, the object we present here is only the third Lyman-alphaselected galaxy to be spectroscopically confirmed at redshift seven, and is2--3 times fainter than the previously confirmed redshift seven Lyman alphagalaxies.

A Lyman Alpha Galaxy at Redshift z=6.944 in the COSMOS Field