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dc.contributor.authorDiehl, H. Thomaspt_BR
dc.contributor.authorSantiago, Basilio Xavierpt_BR
dc.contributor.authorWalker, Alistairpt_BR
dc.contributor.authorDES Collaborationpt_BR
dc.date.accessioned2018-03-15T02:31:47Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn0067-0049pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/173382pt_BR
dc.description.abstractWe report the results of searches for strong gravitational lens systems in the Dark Energy Survey (DES) Science Verification and Year 1 observations. The Science Verification data span approximately 250 sq. deg. with a median i-band limiting magnitude for extended objects (10σ) of 23.0. The Year 1 data span approximately 2000 sq. deg. and have an i-band limiting magnitude for extended objects (10σ) of 22.9. As these data sets are both wide and deep, they are particularly useful for identifying strong gravitational lens candidates. Potential strong gravitational lens candidate systems were initially identified based on a color and magnitude selection in the DES object catalogs or because the system is at the location of a previously identified galaxy cluster. Cutout images of potential candidates were then visually scanned using an object viewer and numerically ranked according to whether or not we judged them to be likely strong gravitational lens systems. Having scanned nearly 400,000 cutouts, we present 374 candidate strong lens systems, of which 348 are identified for the first time. We provide the R.A. and decl., the magnitudes and photometric properties of the lens and source objects, and the distance (radius) of the source(s) from the lens center for each system.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofThe astrophysical journal. Supplement series. Chicago. Vol. 232, no. 1 (Sept. 2017), 15, 28 p.pt_BR
dc.rightsOpen Accessen
dc.subjectGaláxiaspt_BR
dc.subjectGalaxies: high-redshiften
dc.subjectMatéria escurapt_BR
dc.subjectGravitational lensing: strongen
dc.subjectLentes gravitacionaispt_BR
dc.subjectFotometria astronômicapt_BR
dc.titleThe DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observationspt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001055978pt_BR
dc.type.originEstrangeiropt_BR


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