CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431

We present a quintuply lensed z ∼ 6 candidate discovered in the field of the galaxy cluster RXC J2248.7-4431 (z ∼ 0.348) targeted within the Cluster Lensing and Supernova survey with Hubble (CLASH) and selected in the deep Hubble Space Telescope (HST) frontier fields survey. Thanks to the CLASH 16-b...

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Detalles Bibliográficos
Autores: Monna, A., Benítez, Narciso, Jiménez-Teja, Y., Jouvel, S., Molino, Alberto
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/392155
Acceso en línea:http://hdl.handle.net/10261/392155
Access Level:acceso abierto
Palabra clave:Gravitational lensing: strong
Galaxies: clusters: general
Galaxies: high-redshift.
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spelling CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431Monna, A.Benítez, NarcisoJiménez-Teja, Y.Jouvel, S.Molino, AlbertoGravitational lensing: strongGalaxies: clusters: generalGalaxies: high-redshift.We present a quintuply lensed z ∼ 6 candidate discovered in the field of the galaxy cluster RXC J2248.7-4431 (z ∼ 0.348) targeted within the Cluster Lensing and Supernova survey with Hubble (CLASH) and selected in the deep Hubble Space Telescope (HST) frontier fields survey. Thanks to the CLASH 16-band HST imaging, we identify the quintuply lensed z ∼ 6 candidate as an optical dropout in the inner region of the cluster, the brightest image having magAB = 24.8 ± 0.1 in the f105w filter. We perform a detailed photometric analysis to verify its high-z and lensed nature. We get as photometric redshift zph ∼ 5.9, and given the extended nature and NIR colours of the lensed images, we rule out low-z early-type and galactic star contaminants. We perform a strong lensing analysis of the cluster, using 13 families of multiple lensed images identified in the HST images. Our final best model predicts the high-z quintuply lensed system with a position accuracy of 0.8 arcsec. The magnifications of the five images are between 2.2 and 8.3, which leads to a delensed UV luminosity of L_{1600}∼ 0.5L_{1600}^* at z = 6. We also estimate the UV slope from the observed NIR colours, finding a steep β = -2.89 ± 0.38. We use singular and composite stellar population SEDs to fit the photometry of the high-z candidate, and we conclude that it is a young (age <300 Myr) galaxy with mass of M ∼ 108 M⊙, subsolar metallicity (Z < 0.2 Z⊙) and low dust content (AV ∼ 0.2-0.4). © 2013 The AuthorsThis work is supported by the Transregional Collaborative Research Centre TRR 33 - The Dark Universe and the DFG cluster of excellence ‘Origin and Structure of the Universe’. The CLASH Multi-Cycle Treasury Program (GO-12065) is based on observations made with the NASA/ESA HST. The Space Telescope Science Institute is operated by the Association of Universities for Research in Astronomy, Inc. under NASA contract NAS 5-26555. The Dark Cosmology Centre is funded by the DNRF. Support for AZ is provided by NASA through Hubble Fellowship grant HSTHF-51334.01-A awarded by STScI. He was also partly supported by contract research ‘Internationale Spitzenforschung II/2-6’ of the Baden Wurttemberg Stiftung.Peer reviewedOxford University PressNASABaden-Württemberg FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/392155reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1093/mnras/stt2284Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3921552026-05-22T06:33:51Z
dc.title.none.fl_str_mv CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
title CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
spellingShingle CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
Monna, A.
Gravitational lensing: strong
Galaxies: clusters: general
Galaxies: high-redshift.
title_short CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
title_full CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
title_fullStr CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
title_full_unstemmed CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
title_sort CLASH: z ∼ 6 young galaxy candidate quintuply lensed by the frontier field cluster RXC J2248.7−4431
dc.creator.none.fl_str_mv Monna, A.
Benítez, Narciso
Jiménez-Teja, Y.
Jouvel, S.
Molino, Alberto
author Monna, A.
author_facet Monna, A.
Benítez, Narciso
Jiménez-Teja, Y.
Jouvel, S.
Molino, Alberto
author_role author
author2 Benítez, Narciso
Jiménez-Teja, Y.
Jouvel, S.
Molino, Alberto
author2_role author
author
author
author
dc.contributor.none.fl_str_mv NASA
Baden-Württemberg Foundation
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Gravitational lensing: strong
Galaxies: clusters: general
Galaxies: high-redshift.
topic Gravitational lensing: strong
Galaxies: clusters: general
Galaxies: high-redshift.
description We present a quintuply lensed z ∼ 6 candidate discovered in the field of the galaxy cluster RXC J2248.7-4431 (z ∼ 0.348) targeted within the Cluster Lensing and Supernova survey with Hubble (CLASH) and selected in the deep Hubble Space Telescope (HST) frontier fields survey. Thanks to the CLASH 16-band HST imaging, we identify the quintuply lensed z ∼ 6 candidate as an optical dropout in the inner region of the cluster, the brightest image having magAB = 24.8 ± 0.1 in the f105w filter. We perform a detailed photometric analysis to verify its high-z and lensed nature. We get as photometric redshift zph ∼ 5.9, and given the extended nature and NIR colours of the lensed images, we rule out low-z early-type and galactic star contaminants. We perform a strong lensing analysis of the cluster, using 13 families of multiple lensed images identified in the HST images. Our final best model predicts the high-z quintuply lensed system with a position accuracy of 0.8 arcsec. The magnifications of the five images are between 2.2 and 8.3, which leads to a delensed UV luminosity of L_{1600}∼ 0.5L_{1600}^* at z = 6. We also estimate the UV slope from the observed NIR colours, finding a steep β = -2.89 ± 0.38. We use singular and composite stellar population SEDs to fit the photometry of the high-z candidate, and we conclude that it is a young (age <300 Myr) galaxy with mass of M ∼ 108 M⊙, subsolar metallicity (Z < 0.2 Z⊙) and low dust content (AV ∼ 0.2-0.4). © 2013 The Authors
publishDate 2014
dc.date.none.fl_str_mv 2014
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/392155
url http://hdl.handle.net/10261/392155
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1093/mnras/stt2284
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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