BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1
Diego, J. M., et al.
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/358522 |
| Acceso en línea: | http://hdl.handle.net/10261/358522 |
| Access Level: | acceso abierto |
| Palabra clave: | Gravitational lensing: strong Supergiants Gravitation |
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BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| title |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| spellingShingle |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 Diego, José María Gravitational lensing: strong Supergiants Gravitation |
| title_short |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| title_full |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| title_fullStr |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| title_full_unstemmed |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| title_sort |
BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1 |
| dc.creator.none.fl_str_mv |
Diego, José María Palencia, Jose María Pascale, Massimo |
| author |
Diego, José María |
| author_facet |
Diego, José María Palencia, Jose María Pascale, Massimo |
| author_role |
author |
| author2 |
Palencia, Jose María Pascale, Massimo |
| author2_role |
author author |
| dc.contributor.none.fl_str_mv |
Agencia Estatal de Investigación (España) Ministerio de Ciencia e Innovación (España) Ministerio de Ciencia, Innovación y Universidades (España) UK Research and Innovation European Commission NASA National Science Foundation (US) Science and Technology Facilities Council (UK) Ministry of Science and Technology (Israel) United States-Israel Binational Science Foundation Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Gravitational lensing: strong Supergiants Gravitation |
| topic |
Gravitational lensing: strong Supergiants Gravitation |
| description |
Diego, J. M., et al. |
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2024 |
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2024 2024 2024 |
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info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
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http://hdl.handle.net/10261/358522 |
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http://hdl.handle.net/10261/358522 |
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Inglés |
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EDP Sciences |
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BUFFALO/Flashlights: Constraints on the abundance of lensed supergiant stars in the Spock galaxy at redshift 1Diego, José MaríaPalencia, Jose MaríaPascale, MassimoGravitational lensing: strongSupergiantsGravitationDiego, J. M., et al.In this work, we present a constraint on the abundance of supergiant (SG) stars at redshift z ≈ 1, based on recent observations of a strongly lensed arc at this redshift. First we derived a free-form model of MACS J0416.1-2403 using data from the Beyond Ultra-deep Frontier Fields and Legacy Observations (BUFFALO) program. The new lens model is based on 72 multiply lensed galaxies that produce 214 multiple images, making it the largest sample of spectroscopically confirmed lensed galaxies on this cluster. The larger coverage in BUFFALO allowed us to measure the shear up to the outskirts of the cluster, and extend the range of lensing constraints up to ∼1 Mpc from the central region, providing a mass estimate up to this radius. As an application, we make predictions for the number of high-redshift multiply lensed galaxies detected in future observations with the James Webb Space Telescope (JWST). Then we focus on a previously known lensed galaxy at z = 1.0054, nicknamed Spock, which contains four previously reported transients. We interpret these transients as microcaustic crossings of SG stars and explain how we computed the probability of such events. Based on simplifications regarding the stellar evolution, we find that microlensing (by stars in the intracluster medium) of SG stars at z = 1.0054 can fully explain these events. The inferred abundance of SG stars is consistent with either (1) a number density of stars with bolometric luminosities beyond the Humphreys-Davidson (HD) limit (Lmax ≈ 6 × 105 L⊙ for red stars), which is below ∼400 stars kpc−2, or (2) the absence of stars beyond the HD limit but with a SG number density of ∼9000 kpc−2 for stars with luminosities between 105 L⊙ and 6 × 105 L⊙. This is equivalent to one SG star per 10 × 10 pc2. Finally, we make predictions for future observations with JWST’s NIRcam. We find that in observations made with the F200W filter that reach 29 mag AB, if cool red SG stars exist at z ≈ 1 beyond the HD limit, they should be easily detected in this arc.J.M.D. acknowledges the support of project PGC2018-101814-B-100 (MCIU/AEI/MINECO/FEDER, UE) Ministerio de Ciencia, Investigación y Universidades. This project was funded by the Agencia Estatal de Investigación, Unidad de Excelencia María de Maeztu, ref. MDM-2017-0765. A.N., M.J., and DJ.L. are supported by the UK Research and Innovation (UKRI) Future Leaders Fellowship (FLF), “Using Cosmic Beasts to Uncover the Nature of Dark Matter” (grant MR/S017216/1). D.J.L. is also supported by STFC grants ST/T000244/1 and ST/W002612/1. A.A. has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 101024195 – ROSEAU. M.L. acknowledges CNRS and CNES. P.K. is supported by NSF grant AST-1908823, and NASA/STScI grants GO-15936 and GO-16278. A.Z. acknowledges support by grant 2020750 from the US-Israel Binational Science Foundation (BSF) and grant 2109066 from the US National Science Foundation (NSF), and by the Ministry of Science & Technology, Israel. A.V.F. is grateful for financial support from the Christopher R. Redlich Fund and numerous individual donors. S.K.L. and J.L. are supported by the Collaborative Research Fund under grant C6017-20G, which is issued by Research Grants Council of Hong Kong S.A.R. This research is based on observations made with the NASA/ESA Hubble Space Telescope and obtained from the Space Telescope Science Institute (STScI), which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS5–26555.Peer reviewedEDP SciencesAgencia Estatal de Investigación (España)Ministerio de Ciencia e Innovación (España)Ministerio de Ciencia, Innovación y Universidades (España)UK Research and InnovationEuropean CommissionNASANational Science Foundation (US)Science and Technology Facilities Council (UK)Ministry of Science and Technology (Israel)United States-Israel Binational Science FoundationConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/358522reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-101814-B-I00info:eu-repo/grantAgreement/AEI//MDM-2017-0765info:eu-repo/grantAgreement/EC/H2020/101024195https://doi.org/10.1051/0004-6361/202346761Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3585222026-05-22T06:33:51Z |
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