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 searched for z > 7 Lyman-break galaxies (LBGs) in theoptical-to-mid-infrared Hubble Frontier Field and associated parallel fieldobservations of the strong-lensing cluster MACS J0416-2403. We discovered 22candidates, of which six lie at z > 9 and one lies at z > 10. Based on theHubble and Spitzer photometry, all have secure photometric redshifts and anegligible probability of being at lower redshifts, according to their peakprobability ratios, R. This substantial increase in the number of knownhigh-redshift galaxies allows a solid determination of the luminosity functionat z > 8. The number of high-z candidates in the parallel field is considerablyhigher than that in the Abell 2744 parallel field. Our candidates have medianstellar masses of log(M_*) ~ 8.40^{+0.55}_{-0.31}~Msun, SFRs of ~1.6^{+0.5}_{-0.4} Msun yr^-1, and SFR-weighted ages of < 310^{+70}_{-140} Myr.Finally, we are able to put strong constraints on the z = 7,8,9 and 10luminosity functions. One of the objects in the cluster field is a z ~ 10candidate, with a magnification of mu ~ 20 +- 13. This object is likely thefaintest z ~ 10 object known to date, allowing a first look into the extremefaint-end (L ~ 0.04L*) of the z ~ 10 luminosity function.

Young Galaxy Candidates in the Hubble Frontier Fields. II. MACS,J0416-2403