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

[Abridged]We exploit a large homogeneous dataset to derive a self-consistentpicture of IR emission based on the time-dependent 24, 15, 12 and 8micronmonochromatic and bolometric IR luminosity functions (LF) over the 0<z<2.5redshift range. Our analysis is based on the combination of data from deepSpitzer surveys in the VVDS-SWIRE and GOODS areas. To our limiting flux ofS(24)=400microJy our derived sample in VVDS-SWIRE includes 1494 sources, and666 and 904 sources brighter than S(24)=80microJy are catalogued in GOODS-S andGOODS-N, respectively, for a total area of ~0.9 square degs. We obtain reliableoptical identifications and redshifts, providing us a rich and robust datasetfor our luminosity function determination. Based on the multi-wavelengthinformation available, we constrain the LFs at 8, 12, 15 and 24micron. We alsoextrapolate total IR luminosities from our best-fit to the observed SEDs ofeach source, and use this to derive the bolometric LF and comoving volumeemissivity up to z~2.5. In the 0<z<1 interval, the bolometric IR luminositydensity evolves as (1+z)^3.8+/-0.4. Although more uncertain at higher-z, ourresults show a flattening of the IR luminosity density at z>1. The meanredshift of the peak in the source number density shifts with luminosity: thebrighest IR galaxies appear to be forming stars earlier in cosmic time (z>1.5),while the less luminous ones keep doing it at more recent epochs (z~1 forL(IR)<10^11L_sun). Our results suggest a rapid increase of the galaxy IRcomoving volume emissivity back to z~1 and a constant average emissivity atz>1. We also seem to find a difference in the evolution rate of the sourcenumber densities as a function of luminosity, a downsizing evolutionary patternsimilar to that reported from other samples of cosmic sources.

Mid- and Far-infrared Luminosity Functions and Galaxy Evolution from Multiwavelength Spitzer Observations up to z~2.5