dc.creatorItziar Aretxaga
dc.creatorDavid Hughes
dc.date2011-02-10
dc.date.accessioned2023-07-25T16:24:27Z
dc.date.available2023-07-25T16:24:27Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1849
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7807040
dc.descriptionWe present physical properties of two submillimeter selected gravitationally lensed sources, identified in the Herschel Astrophysical Terahertz Large Area Survey. These submillimeter galaxies (SMGs) have flux densities >100 mJy at 500 μm, but are not visible in existing optical imaging. We fit light profiles to each component of the lensing systems in Spitzer IRAC 3.6 and 4.5 μm data and successfully disentangle the foreground lens from the background source in each case, providing important constraints on the spectral energy distributions (SEDs) of the background SMG at rest-frame optical–near-infrared wavelengths. The SED fits show that these two SMGs have high dust obscuration with Aᵥ ∼ 4–5 and star formation rates of ∼100Mꙩ yr⁻¹. They have low gas fractions and low dynamical masses compared with 850 μm selected galaxies.
dc.formatapplication/pdf
dc.languageeng
dc.publisherThe Astrophysical Journal Letters
dc.relationcitation:Hopwood, R., et al., (2011), SPITZER IMAGING OF HERSCHEL-ATLAS GRAVITATIONALLY LENSED SUBMILLIMETER SOURCES, The Astrophysical Journal Letters, Vol. 728(L4):1-6.
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies
dc.subjectinfo:eu-repo/classification/Inspec/Individual (SDP.81: H-ATLAS J090311.6+003906, SDP.130: H-ATLAS J091305.0-005343)
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: starburst
dc.subjectinfo:eu-repo/classification/Inspec/Gravitational lensing: strong
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleSPITZER IMAGING OF HERSCHEL-ATLAS GRAVITATIONALLY LENSED SUBMILLIMETER SOURCES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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