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Herschel -ATLAS: rapid evolution of dust in galaxies over the last 5 billion years

Dunne, L.; Gomez, H. L.; da Cunha, Elisabete; Charlot, S.; Dye, S.; Eales, S.; Maddox, Steve J.; Rowlands, K.; Smith, D. J. B.; Auld, R.; Baes, M.

Description

We present the first direct and unbiased measurement of the evolution of the dust mass function of galaxies over the past 5 billion years of cosmic history using data from the Science Demonstration Phase of the Herschel-Astrophysical Terahertz Large Area Survey (Herschel-ATLAS). The sample consists of galaxies selected at 250 forumlam which have reliable counterparts from the Sloan Digital Sky Survey (SDSS) at z < 0.5, and contains 1867 sources. Dust masses are calculated using both a...[Show more]

dc.contributor.authorDunne, L.
dc.contributor.authorGomez, H. L.
dc.contributor.authorda Cunha, Elisabete
dc.contributor.authorCharlot, S.
dc.contributor.authorDye, S.
dc.contributor.authorEales, S.
dc.contributor.authorMaddox, Steve J.
dc.contributor.authorRowlands, K.
dc.contributor.authorSmith, D. J. B.
dc.contributor.authorAuld, R.
dc.contributor.authorBaes, M.
dc.date.accessioned2018-11-29T22:53:57Z
dc.date.available2018-11-29T22:53:57Z
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/152626
dc.description.abstractWe present the first direct and unbiased measurement of the evolution of the dust mass function of galaxies over the past 5 billion years of cosmic history using data from the Science Demonstration Phase of the Herschel-Astrophysical Terahertz Large Area Survey (Herschel-ATLAS). The sample consists of galaxies selected at 250 forumlam which have reliable counterparts from the Sloan Digital Sky Survey (SDSS) at z < 0.5, and contains 1867 sources. Dust masses are calculated using both a single-temperature grey-body model for the spectral energy distribution and also a model with multiple temperature components. The dust temperature for either model shows no trend with redshift. Splitting the sample into bins of redshift reveals a strong evolution in the dust properties of the most massive galaxies. At z= 0.4–0.5, massive galaxies had dust masses about five times larger than in the local Universe. At the same time, the dust-to-stellar mass ratio was about three to four times larger, and the optical depth derived from fitting the UV-sub-mm data with an energy balance model was also higher. This increase in the dust content of massive galaxies at high redshift is difficult to explain using standard dust evolution models and requires a rapid gas consumption time-scale together with either a more top-heavy initial mass function (IMF), efficient mantle growth, less dust destruction or combinations of all three. This evolution in dust mass is likely to be associated with a change in overall interstellar medium mass, and points to an enhanced supply of fuel for star formation at earlier cosmic epochs.
dc.format.mimetypeapplication/pdf
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.titleHerschel -ATLAS: rapid evolution of dust in galaxies over the last 5 billion years
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume417
dc.date.issued2011
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationu5058514xPUB82
local.type.statusPublished Version
local.contributor.affiliationDunne, L, University of Nottingham
local.contributor.affiliationGomez, H L, Cardiff University
local.contributor.affiliationda Cunha, Elisabete, College of Science, ANU
local.contributor.affiliationCharlot, S, CNRS, Universite Pierre & Marie Curie
local.contributor.affiliationDye, S, Cardiff University
local.contributor.affiliationEales, S, Cardiff University
local.contributor.affiliationMaddox, Steve J, University of Nottingham
local.contributor.affiliationRowlands, K, The University of Nottingham
local.contributor.affiliationSmith, D J B, University of Nottingham
local.contributor.affiliationAuld, R, Cardiff University
local.contributor.affiliationBaes, M, Ghent University
local.bibliographicCitation.issue2
local.identifier.doi10.1111/j.1365-2966.2011.19363.x
dc.date.updated2018-11-29T07:56:23Z
local.identifier.scopusID2-s2.0-80053601905
local.identifier.thomsonID000297043000046
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

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