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 protoclusters in the epoch of reionization, traced by galaxiesoverdensity regions, are ideal laboratories for studying the process of stellarassembly and cosmic reionization. We present the spectroscopic confirmation ofthe core of the most distant protocluster at $z = 7.88$, A2744-z7p9OD, with theJames Webb Space Telescope NIRSpec integral field unit spectroscopy. The coreregion includes as many as 4 galaxies detected in [OIII] 4960 \AA\ and 5008\AA\ in a small area of $\sim 3\arcsec \times 3\arcsec$, corresponding to$\sim$ 11 kpc $\times$ 11 kpc, after the lensing magnification correction.Three member galaxies are also tentatively detected in dust continuum inAtacama Large Millimeter/submillimeter Array Band 6, which is consistent withtheir red ultraviolet continuum slopes, $\beta \sim -1.3$. The member galaxieshave stellar masses in the range of log($M_{*}/M_{\rm \odot}$) $\sim 7.6-9.2$and star formation rates of $\sim 3-50$ $M_{\rm \odot}$ yr$^{-1}$, showing adiversity in their properties. FirstLight cosmological simulations reproducethe physical properties of the member galaxies including the stellar mass,[OIII] luminosity, and dust-to-stellar mass ratio, and predict that the membergalaxies are on the verge of merging in a few to several tens Myr to become alarge galaxy with $M_{\rm *}\sim 6\times10^{9} M_{\rm \odot}$. The presence ofa multiple merger and evolved galaxies in the core region of A2744-z7p9ODindicates that environmental effects are already at work 650 Myr after the BigBang.

the astrophysical journal. letters

Reionization and the ISM/Stellar Origins with JWST and ALMA (RIOJA): The  core of the highest redshift galaxy overdensity at $z = 7.88$ confirmed by  NIRSpec/JWST