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 provide an holistic view of galaxy evolution at high redshift z>4, thatincorporates the constraints from various astrophysical/cosmological probes,including the estimate of the cosmic SFR density from UV/IR surveys and longGRB rates, the cosmic reionization history after the latest Planckmeasurements, and the missing satellites issue. We achieve this goal in amodel-independent way by exploiting the SFR functions derived by Mancuso et al.(2016) on the basis of an educated extrapolation of the latest UV/far-IR datafrom HST/Herschel, and already tested against a number of independentobservables. Our SFR functions integrated down to an UV magnitude limitM_UV<-13 (or SFR limit around 10^-2 M_sun/yr) produces a cosmic SFR density inexcellent agreement with recent determinations from IR surveys and, taking intoaccount a metallicity ceiling Z<Z_sun/2, with the estimates from long GRBrates. They also yield a cosmic reionization history consistent with thatimplied by the recent measurements of the Planck mission on the electronscattering optical depth tau_es~0.058; remarkably, this result is obtainedunder a conceivable assumption regarding the average value f_esc~0.1 of theescape fraction for ionizing photons. We demonstrate via the abundance matchingtechnique that the above constraints concurrently imply galaxy formation tobecome inefficient within dark matter halos of mass below a few 10^8 M_sun;pleasingly, such a limit is also required not to run into the missing satelliteissue. Finally, we predict a downturn of the galaxy luminosity functionfaintward of M_UV<-12, and stress that its detailed shape, as plausibly probedin the next future by the JWST, will be extremely informative on theastrophysics of galaxy formation in small halos, or even on the microscopicnature of the dark matter.

Galaxy Evolution at High Redshift: Obscured Star Formation, GRB Rates, Cosmic Reionization, and Missing Satellites