Skip navigation
Skip navigation

Herschel-ATLAS: deep HST/WFC3 imaging of strongly lensed submillimetre galaxies

Negrello, M.; Hopwood, R.; Dye, S.; da Cunha, Elisabete; Serjeant, S.; Fritz, J.; Auld, R; Dunne, L; Eales, S; Michałowski, M. J.; Temi, P

Description

We report on deep near-infrared observations obtained with the Wide Field Camera-3 (WFC3) onboard the HubbleSpace Telescope (HST) of the first five confirmed gravitational lensing events discovered by the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). We succeed in disentangling the background galaxy from the lens to gain separate photometry of the two components. The HST data allow us to significantly improve on previous constraints of the mass in stars of the lensed galaxy and...[Show more]

dc.contributor.authorNegrello, M.
dc.contributor.authorHopwood, R.
dc.contributor.authorDye, S.
dc.contributor.authorda Cunha, Elisabete
dc.contributor.authorSerjeant, S.
dc.contributor.authorFritz, J.
dc.contributor.authorAuld, R
dc.contributor.authorDunne, L
dc.contributor.authorEales, S
dc.contributor.authorMichałowski, M. J.
dc.contributor.authorTemi, P
dc.date.accessioned2018-11-29T22:53:34Z
dc.date.available2018-11-29T22:53:34Z
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/1885/152510
dc.description.abstractWe report on deep near-infrared observations obtained with the Wide Field Camera-3 (WFC3) onboard the HubbleSpace Telescope (HST) of the first five confirmed gravitational lensing events discovered by the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). We succeed in disentangling the background galaxy from the lens to gain separate photometry of the two components. The HST data allow us to significantly improve on previous constraints of the mass in stars of the lensed galaxy and to perform accurate lens modelling of these systems, as described in the accompanying paper by Dye et al. We fit the spectral energy distributions of the background sources from near-IR to millimetre wavelengths and use the magnification factors estimated by Dye et al. to derive the intrinsic properties of the lensed galaxies. We find these galaxies to have star-formations rates (SFR) ∼ 400–2000 M⊙ yr−1, with ∼(6–25) × 1010 M⊙ of their baryonic mass already turned into stars. At these rates of star formation, all remaining molecular gas will be exhausted in less than ∼100 Myr, reaching a final mass in stars of a few 1011 M⊙. These galaxies are thus proto-ellipticals caught during their major episode of star formation, and observed at the peak epoch (z ∼ 1.5–3) of the cosmic star formation history of the Universe.
dc.format.mimetypeapplication/pdf
dc.publisherBlackwell Publishing Ltd
dc.sourceMonthly Notices of the Royal Astronomical Society
dc.titleHerschel-ATLAS: deep HST/WFC3 imaging of strongly lensed submillimetre galaxies
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume440
dc.date.issued2014
local.identifier.absfor020104 - Galactic Astronomy
local.identifier.ariespublicationa383154xPUB8686
local.type.statusPublished Version
local.contributor.affiliationNegrello, M., INAF,Osservatorio Astronomico di Padova
local.contributor.affiliationHopwood, R., Imperial College London
local.contributor.affiliationDye, S., University of Nottingham
local.contributor.affiliationda Cunha, Elisabete, College of Science, ANU
local.contributor.affiliationSerjeant, S., The Open University
local.contributor.affiliationFritz, J., Universiteit Gent
local.contributor.affiliationAuld, R, Cardiff University
local.contributor.affiliationDunne, L, University of Nottingham
local.contributor.affiliationEales, S, Cardiff University
local.contributor.affiliationMichałowski, M. J., University of Edinburgh
local.contributor.affiliationTemi, P, NASA Ames Research Center
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage1999
local.bibliographicCitation.lastpage2012
local.identifier.doi10.1093/mnras/stu413
dc.date.updated2018-11-29T07:53:29Z
local.identifier.scopusID2-s2.0-84898792324
local.identifier.thomsonID000334744000009
dcterms.accessRightsOpen Access
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator