Gravitational lens models based on submillimeter array imaging of Herschel-selected strongly lensed sub-millimeter galaxies at z > 1.5

dc.contributorVirginia Techen
dc.contributor.authorBussmann, R. S.en
dc.contributor.authorPerez-Fournon, I.en
dc.contributor.authorAmber, S.en
dc.contributor.authorCalanog, J. A.en
dc.contributor.authorGurwell, M. A.en
dc.contributor.authorDannerbauer, H.en
dc.contributor.authorDe Bernardis, F.en
dc.contributor.authorFu, H.en
dc.contributor.authorHarris, A. I.en
dc.contributor.authorKrips, M.en
dc.contributor.authorLapi, A.en
dc.contributor.authorMaiolino, R.en
dc.contributor.authorOmont, A.en
dc.contributor.authorRiechers, D. A.en
dc.contributor.authorWardlow, J.en
dc.contributor.authorBaker, A. J.en
dc.contributor.authorBirkinshaw, M.en
dc.contributor.authorBock, J.en
dc.contributor.authorBourne, N.en
dc.contributor.authorClements, D. L.en
dc.contributor.authorCooray, A.en
dc.contributor.authorDe Zotti, G.en
dc.contributor.authorDunne, L.en
dc.contributor.authorDye, S.en
dc.contributor.authorEales, S.en
dc.contributor.authorFarrah, D.en
dc.contributor.authorGavazzi, R.en
dc.contributor.authorNuevo, J. G.en
dc.contributor.authorHopwood, R.en
dc.contributor.authorIbar, E.en
dc.contributor.authorIvison, R. J.en
dc.contributor.authorLaporte, N.en
dc.contributor.authorMaddox, S.en
dc.contributor.authorMartinez-Navajas, P.en
dc.contributor.authorMichalowski, M. J.en
dc.contributor.authorNegrello, M.en
dc.contributor.authorOliver, S. J.en
dc.contributor.authorRoseboom, I. G.en
dc.contributor.authorScott, D.en
dc.contributor.authorSerjeant, S.en
dc.contributor.authorSmith, A. J.en
dc.contributor.authorSmith, M.en
dc.contributor.authorStreblyanska, A.en
dc.contributor.authorValiante, E.en
dc.contributor.authorvan der Werf, P.en
dc.contributor.authorVerma, A.en
dc.contributor.authorVieira, J. D.en
dc.contributor.authorWang, L.en
dc.contributor.authorWilner, D.en
dc.description.abstractStrong gravitational lenses are now being routinely discovered in wide-field surveys at (sub-)millimeter wavelengths. We present Submillimeter Array (SMA) high-spatial resolution imaging and Gemini-South and Multiple Mirror Telescope optical spectroscopy of strong lens candidates discovered in the two widest extragalactic surveys conducted by the Herschel Space Observatory: the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) and the Herschel Multi-tiered Extragalactic Survey (HerMES). From a sample of 30 Herschel sources with S-500 > 100 mJy, 21 are strongly lensed (i.e., multiply imaged), 4 are moderately lensed (i.e., singly imaged), and the remainder require additional data to determine their lensing status. We apply a visibility-plane lens modeling technique to the SMA data to recover information about the masses of the lenses as well as the intrinsic (i.e., unlensed) sizes (r(half)) and far-infrared luminosities (L-FIR) of the lensed submillimeter galaxies (SMGs). The sample of lenses comprises primarily isolated massive galaxies, but includes some groups and clusters as well. Several of the lenses are located at z(lens) > 0.7, a redshift regime that is inaccessible to lens searches based on Sloan Digital Sky Survey spectroscopy. The lensed SMGs are amplified by factors that are significantly below statistical model predictions given the 500 mu m flux densities of our sample. We speculate that this may reflect a deficiency in our understanding of the intrinsic sizes and luminosities of the brightest SMGs. The lensed SMGs span nearly one decade in L-FIR (median L-FIR = 7.9 x 10(12) L-circle dot) and two decades in FIR luminosity surface density (median Sigma(FIR) = 6.0 x 10(11) L-circle dot kpc(-2)). The strong lenses in this sample and others identified via (sub-) mm surveys will provide a wealth of information regarding the astrophysics of galaxy formation and evolution over a wide range in redshift.en
dc.description.sponsorshipNASA through JPLen
dc.description.sponsorshipCSA (Canada)en
dc.description.sponsorshipNAOC (China)en
dc.description.sponsorshipCEA (France)en
dc.description.sponsorshipCNES (France)en
dc.description.sponsorshipCNRS (France)en
dc.description.sponsorshipASI (Italy)en
dc.description.sponsorshipMCINN (Spain)en
dc.description.sponsorshipSNSB (Sweden)en
dc.description.sponsorshipSTFC (UK)en
dc.description.sponsorshipUKSA (UK)en
dc.description.sponsorshipNASA (USA)en
dc.description.sponsorshipSMA Fellowship programen
dc.description.sponsorshipNSF AST-0645427en
dc.description.sponsorshipNational Science Foundation PHY-1066293en
dc.description.sponsorshipScience and Technology Facilities Council ST/I000976/1en
dc.description.sponsorshipPRIN INAFen
dc.description.sponsorshipProgramme National Cosmologie et Galaxies (PNCG)en
dc.description.sponsorshipSpanish CSIC for a JAE-DOCen
dc.description.sponsorshipSpanish Ministerio de Ciencia e Innovacion AYA2010-21766-C03-01en
dc.description.sponsorshipSpanish grant AYA2010-21697-C05-04en
dc.identifier.citationR. S. Bussmann et al. 2013. "Gravitational lens models based on submillimeter array imaging of Herschel-selected strongly lensed sub-millimeter galaxies at z > 1.5," ApJ 779 25 doi:10.1088/0004-637X/779/1/25en
dc.publisherIOP Publishing Ltd.en
dc.rightsIn Copyrighten
dc.subjectgalaxies: evolutionen
dc.subjectgalaxies: fundamental parametersen
dc.subjectgalaxies: halosen
dc.subjectgalaxies: high-redshiften
dc.subjectgravitational lensing: strongen
dc.subjectstar-forming galaxiesen
dc.subjectsouth-pole telescopeen
dc.subjectultraluminous infrared galaxiesen
dc.subjectmolecular interstellar-mediumen
dc.subjectnumber countsen
dc.titleGravitational lens models based on submillimeter array imaging of Herschel-selected strongly lensed sub-millimeter galaxies at z > 1.5en
dc.title.serialAstrophysical Journalen
dc.typeArticle - Refereeden
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