Show simple item record

dc.contributor.authorSymeonidis, M.
dc.contributor.authorVaccari, M.
dc.contributor.authorBerta, S.
dc.contributor.authorPage, M.
dc.contributor.authorLutz, D.
dc.contributor.authorArumugam, V.
dc.contributor.authorAussel, H.
dc.contributor.authorBock, J.
dc.contributor.authorBoselli, A.
dc.contributor.authorBuat, V.
dc.contributor.authorCapak, P.
dc.contributor.authorClements, D.
dc.contributor.authorConley, A.
dc.contributor.authorConversi, L.
dc.contributor.authorCooray, A.
dc.contributor.authorDowell, C.
dc.contributor.authorFarrah, D.
dc.contributor.authorFranceschini, A.
dc.contributor.authorGiovannoli, E.
dc.contributor.authorGlenn, J.
dc.contributor.authorGriffin, M.
dc.contributor.authorHatziminaoglou, E.
dc.contributor.authorHwang, H.
dc.contributor.authorIbar, E.
dc.contributor.authorIlbert, O.
dc.contributor.authorIvison, R.
dc.contributor.authorLe Floc'h, E.
dc.contributor.authorLilly, S.
dc.contributor.authorKartaltepe, J.
dc.contributor.authorMagnelli, B.
dc.contributor.authorMagdis, G.
dc.contributor.authorMarchetti, L.
dc.contributor.authorNguyen, H.
dc.contributor.authorNordon, R.
dc.contributor.authorO'Halloran, B.
dc.contributor.authorOliver, S.
dc.contributor.authorOmont, A.
dc.contributor.authorPapageorgiou, A.
dc.contributor.authorPatel, H.
dc.contributor.authorPearson, C.
dc.contributor.authorPerez-Fournon, I.
dc.contributor.authorPohlen, M.
dc.contributor.authorPopesso, P.
dc.contributor.authorPozzi, F.
dc.contributor.authorRigopoulou, D.
dc.contributor.authorRiguccini, L.
dc.contributor.authorRosario, D.
dc.contributor.authorRoseboom, I.
dc.contributor.authorRowan-Robinson, M.
dc.contributor.authorSalvato, M.
dc.contributor.authorSchulz, B.
dc.contributor.authorDouglas, S.
dc.contributor.authorSeymour, Nick
dc.contributor.authorShupe, D.
dc.contributor.authorSmith, A.
dc.contributor.authorValtchanov, I.
dc.contributor.authorWang, L.
dc.contributor.authorXu, C.
dc.contributor.authorZemcov, M.
dc.contributor.authorWuyts, S.
dc.date.accessioned2017-01-30T11:45:25Z
dc.date.available2017-01-30T11:45:25Z
dc.date.created2016-01-18T20:00:48Z
dc.date.issued2013
dc.identifier.citationSymeonidis, M. and Vaccari, M. and Berta, S. and Page, M. and Lutz, D. and Arumugam, V. and Aussel, H. et al. 2013. The Herschel census of infrared SEDs through cosmic time. Monthly Notices of the Royal Astronomical Society. 431 (3): pp. 2317-2340.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/14697
dc.identifier.doi10.1093/mnras/stt330
dc.description.abstract

Using Herschel data from the deepest SPIRE and PACS surveys (HerMES and PEP) in COSMOS, GOODS-S and GOODS-N, we examine the dust properties of infrared (IR)-luminous (LIR > 1010 L☉) galaxies at 0.1 < z < 2 and determine how these evolve with cosmic time. The unique angle of this work is the rigorous analysis of survey selection effects, making this the first study of the star-formation-dominated, IR-luminous population within a framework almost entirely free of selection biases. We find that IR-luminous galaxies have spectral energy distributions (SEDs) with broad far-IR peaks characterized by cool/extended dust emission and average dust temperatures in the 25–45 K range. Hot (T > 45 K) SEDs and cold (T < 25 K), cirrus-dominated SEDs are rare, with most sources being within the range occupied by warm starbursts such as M82 and cool spirals such as M51. We observe a luminosity–temperature (L-T) relation, where the average dust temperature of log [LIR/ L☉] ~ 12.5 galaxies is about 10 K higher than that of their log [LIR/ L☉] ~ 10.5 counterparts.However, although the increased dust heating in more luminous systems is the driving factor behind the L-T relation, the increase in dust mass and/or starburst size with luminosity plays a dominant role in shaping it. Our results show that the dust conditions in IR-luminous sources evolve with cosmic time: at high redshift, dust temperatures are on average up to 10 K lower than what is measured locally (z ~< 0.1). This is manifested as a flattening of the L-T relation, suggesting that (ultra)luminous infrared galaxies [(U)LIRGs] in the early Universe are typically characterized by a more extended dust distribution and/or higher dust masses than local equivalent sources. Interestingly, the evolution in dust temperature is luminosity dependent, with the fraction of LIRGs with T < 35 K showing a two-fold increase from z ~ 0 to z ~ 2, whereas that of ULIRGs with T < 35 K shows a six-fold increase. Our results suggest a greater diversity in the IR-luminous population at high redshift, particularly for ULIRGs.

dc.titleThe Herschel census of infrared SEDs through cosmic time
dc.typeJournal Article
dcterms.source.volume431
dcterms.source.number3
dcterms.source.startPage2317
dcterms.source.endPage2340
dcterms.source.issn0035-8711
dcterms.source.titleMonthly Notices of the Royal Astronomical Society
curtin.note

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

curtin.departmentDepartment of Physics and Astronomy
curtin.accessStatusOpen access


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record