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 cosmic infrared background (CIB) provides a fundamental observationalconstraint on the star-formation history of galaxies over cosmic history. Weestimate the contribution to the CIB from catalogued galaxies in the COSMOSfield by using a novel map fitting technique on the \textit{Herschel} SPIREmaps. Prior galaxy positions are obtained using detections over a large rangein wavelengths in the $K_{\rm s}$--3\,GHz range. Our method simultaneously fitsthe galaxies, the system foreground, and the leakage of flux from galaxieslocated in masked areas and corrects for an "over-fitting" effect notpreviously accounted for in stacking methods. We explore the contribution tothe CIB as a function of galaxy survey wavelength and depth. We find highcontributions to the CIB with the deep $r$ ($m_{\rm AB} \le 26.5$), $K_{\rm s}$($m_{\rm AB} \le 24.0$) and 3.6\,$\mu$m ($m_{\rm AB} \le 25.5$) catalogues. Wecombine these three deep catalogues and find a total CIB contributions of 10.5$\pm$ 1.6, 6.7 $\pm$ 1.5 and 3.1 $\pm$ 0.7\,nWm$^{-2}$sr$^{-1}$ at 250, 350 and500\,$\mu$m, respectively. Our CIB estimates are consistent with recentphenomenological models, prior based SPIRE number counts and with (though moreprecise than) the diffuse total measured by FIRAS. Our results raise theinteresting prospect that the CIB contribution at $\lambda \le 500\,\mu$m fromknown galaxies has converged. Future large-area surveys like those with theLarge Synoptic Survey Telescope are therefore likely to resolve a substantialfraction of the population responsible for the CIB at 250\,$\mu$m $\leq \lambda\leq$ 500\,$\mu$m.

Have we seen all the galaxies that comprise the cosmic infrared background at 250\,$\mu$m $\le \lambda \le$ 500\,$\mu$m?