The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/173382 |
Resumo: | We 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. |
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Diehl, H. ThomasSantiago, Basilio XavierWalker, AlistairDES Collaboration2018-03-15T02:31:47Z20170067-0049http://hdl.handle.net/10183/173382001055978We 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.application/pdfengThe astrophysical journal. Supplement series. Chicago. Vol. 232, no. 1 (Sept. 2017), 15, 28 p.GaláxiasMatéria escuraLentes gravitacionaisFotometria astronômicaGalaxies: high-redshiftGravitational lensing: strongThe DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observationsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001055978.pdf001055978.pdfTexto completo (inglês)application/pdf10130997http://www.lume.ufrgs.br/bitstream/10183/173382/1/001055978.pdf7fdba2d612299c5325c82315bc3bd5f0MD51TEXT001055978.pdf.txt001055978.pdf.txtExtracted Texttext/plain92314http://www.lume.ufrgs.br/bitstream/10183/173382/2/001055978.pdf.txte84eeb40bd83458ade9a8b83c82885a6MD5210183/1733822023-07-02 03:42:42.541319oai:www.lume.ufrgs.br:10183/173382Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-02T06:42:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
title |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
spellingShingle |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations Diehl, H. Thomas Galáxias Matéria escura Lentes gravitacionais Fotometria astronômica Galaxies: high-redshift Gravitational lensing: strong |
title_short |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
title_full |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
title_fullStr |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
title_full_unstemmed |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
title_sort |
The DES Bright Arcs Survey : hundreds of candidate strongly lensed galaxy systems from the Dark Energy Survey Science Verification and Year 1 observations |
author |
Diehl, H. Thomas |
author_facet |
Diehl, H. Thomas Santiago, Basilio Xavier Walker, Alistair DES Collaboration |
author_role |
author |
author2 |
Santiago, Basilio Xavier Walker, Alistair DES Collaboration |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Diehl, H. Thomas Santiago, Basilio Xavier Walker, Alistair DES Collaboration |
dc.subject.por.fl_str_mv |
Galáxias Matéria escura Lentes gravitacionais Fotometria astronômica |
topic |
Galáxias Matéria escura Lentes gravitacionais Fotometria astronômica Galaxies: high-redshift Gravitational lensing: strong |
dc.subject.eng.fl_str_mv |
Galaxies: high-redshift Gravitational lensing: strong |
description |
We 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. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2018-03-15T02:31:47Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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http://hdl.handle.net/10183/173382 |
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0067-0049 |
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001055978 |
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http://hdl.handle.net/10183/173382 |
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eng |
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dc.relation.ispartof.pt_BR.fl_str_mv |
The astrophysical journal. Supplement series. Chicago. Vol. 232, no. 1 (Sept. 2017), 15, 28 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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