Show simple item record

Files in this item


Item metadata

dc.contributor.authorAndrews, Stephen K.
dc.contributor.authorDriver, Simon P.
dc.contributor.authorDavies, Luke J. M.
dc.contributor.authorKafle, Prajwal R.
dc.contributor.authorRobotham, Aaron S. G.
dc.contributor.authorVinsen, Kevin
dc.contributor.authorWright, Angus H.
dc.contributor.authorBland-Hawthorn, Joss
dc.contributor.authorBourne, Nathan
dc.contributor.authorBremer, Malcolm
dc.contributor.authorCunha, Elisabete da
dc.contributor.authorDrinkwater, Michael
dc.contributor.authorHolwerda, Benne
dc.contributor.authorHopkins, Andrew M.
dc.contributor.authorKelvin, Lee S.
dc.contributor.authorLoveday, John
dc.contributor.authorPhillipps, Steven
dc.contributor.authorWilkins, Stephen
dc.identifier.citationAndrews , S K , Driver , S P , Davies , L J M , Kafle , P R , Robotham , A S G , Vinsen , K , Wright , A H , Bland-Hawthorn , J , Bourne , N , Bremer , M , Cunha , E D , Drinkwater , M , Holwerda , B , Hopkins , A M , Kelvin , L S , Loveday , J , Phillipps , S & Wilkins , S 2017 , ' Galaxy And Mass Assembly : the evolution of the cosmic spectral energy distribution from z = 1 to z = 0 ' , Monthly Notices of the Royal Astronomical Society , vol. 470 , no. 2 , pp. 1342-1359 .
dc.identifier.otherPURE: 252095993
dc.identifier.otherPURE UUID: 6760214d-db64-4a50-96ba-244384ade7ee
dc.identifier.otherScopus: 85023773409
dc.identifier.otherWOS: 000406839900008
dc.description.abstractWe present the evolution of the cosmic spectral energy distribution (CSED) from z = 1 to 0. Our CSEDs originate from stacking individual spectral energy distribution (SED) fits based on panchromatic photometry from the Galaxy And Mass Assembly (GAMA) and COSMOS data sets in 10 redshift intervals with completeness corrections applied. Below z = 0.45, we have credible SED fits from 100 nm to 1 mm. Due to the relatively low sensitivity of the far-infrared data, our far-infrared CSEDs contain a mix of predicted and measured fluxes above z = 0.45. Our results include appropriate errors to highlight the impact of these corrections. We show that the bolometric energy output of the Universe has declined by a factor of roughly 4 – from 5.1 ± 1.0 at z ∼ 1 to 1.3 ± 0.3 × 1035 h70 W Mpc−3 at the current epoch. We show that this decrease is robust to cosmic sample variance, the SED modelling and other various types of error. Our CSEDs are also consistent with an increase in the mean age of stellar populations. We also show that dust attenuation has decreased over the same period, with the photon escape fraction at 150 nm increasing from 16 ± 3 at z ∼ 1 to 24 ± 5 per cent at the current epoch, equivalent to a decrease in AFUV of 0.4 mag. Our CSEDs account for 68 ± 12 and 61 ± 13 per cent of the cosmic optical and infrared backgrounds, respectively, as defined from integrated galaxy counts and are consistent with previous estimates of the cosmic infrared background with redshift.
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen
dc.rights© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at
dc.subjectGalaxies: evolutionen
dc.subjectGalaxies: generalen
dc.subjectCosmic background radiationen
dc.subjectCosmology: obsvervationsen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.titleGalaxy And Mass Assembly : the evolution of the cosmic spectral energy distribution from z = 1 to z = 0en
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record