Detection of an ultra-bright submillimeter galaxy behind the small magellanic cloud*

dc.creatorItziar Aretxaga
dc.creatorDavid Hughes
dc.date2013-09-10
dc.date.accessioned2023-07-25T16:25:17Z
dc.date.available2023-07-25T16:25:17Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/2269
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7807449
dc.descriptionWe report the discovery of a new ultra-bright submillimeter galaxy (SMG) behind the Small Magellanic Cloud (SMC). This SMG is detected as a 43.3 ± 8.4 mJy point source (MM J01071−7302, hereafter MMJ0107) in the 1.1 mm continuum survey of the SMC by AzTEC on the ASTE telescope. MMJ0107 is also detected in the radio (843 MHz), Herschel/SPIRE, Spitzer MIPS 24μm, all IRAC bands, Wide-field Infrared Survey Explorer, and near-infrared (J, H, KS). We find an optical (U, B, V) source, which might be the lensing object, at a distance of″.1 from near-infrared and IRAC sources. Photometric redshift estimates for the SMG using representative spectral energy distribution templates show the redshifts of 1.4–3.9. We estimate total far-infrared luminosity of (0.3–2.2) × 10¹⁴ μ⁻¹ L๏ and a star formation rate of 5600–39,000 μ⁻¹ M๏ yr⁻¹, where μ is the gravitational magnification factor. This apparent extreme star formation activity is likely explained by a highly magnified gravitational lens system.
dc.formatapplication/pdf
dc.languageeng
dc.publisherThe Astrophysical Journal Letters
dc.relationcitation:Takekoshi, Tatsuya., et al., (2013), Detection of an ultra-bright submillimeter galaxy behind the small magellanic cloud*, The Astrophysical Journal Letters, Vol.774(L30):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: formation
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: high-redshift
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: starburst
dc.subjectinfo:eu-repo/classification/Inspec/Infrared: galaxies
dc.subjectinfo:eu-repo/classification/Inspec/Magellanic Clouds
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleDetection of an ultra-bright submillimeter galaxy behind the small magellanic cloud*
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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