A Duality in the Origin of Bulges and Spheroidal Galaxies
Studying the resolved stellar populations of the different structural components that build massive galaxies directly unveils their assembly history. We aim at characterizing the stellar population properties of a representative sample of bulges and pure spheroids in massive galaxies (M⋆ > 1010 M...
| Autores: | , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Instituto Nacional de Técnica Aeroespacial (INTA) |
| Repositorio: | DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial |
| OAI Identifier: | oai:digital.inta.es:20.500.12666/605 |
| Acceso en línea: | https://iopscience.iop.org/article/10.3847/1538-4357/abef72 http://hdl.handle.net/20.500.12666/605 |
| Access Level: | acceso abierto |
| Palabra clave: | Galaxy bulges Galaxy structure Galaxy disks Galaxy spheroids Galaxy formation Galaxy evolution Galaxy quenching Galaxy stellar content Galaxy properties Galaxy ages |
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A Duality in the Origin of Bulges and Spheroidal Galaxies |
| title |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| spellingShingle |
A Duality in the Origin of Bulges and Spheroidal Galaxies Constantin, L. Galaxy bulges Galaxy structure Galaxy disks Galaxy spheroids Galaxy formation Galaxy evolution Galaxy quenching Galaxy stellar content Galaxy properties Galaxy ages |
| title_short |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| title_full |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| title_fullStr |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| title_full_unstemmed |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| title_sort |
A Duality in the Origin of Bulges and Spheroidal Galaxies |
| dc.creator.none.fl_str_mv |
Constantin, L. Pérez González, Pablo G. Méndez Abreu, J. Huertas Company, M. Dimauro, P. Alcalde Pampliega, B. Buitrago, F. Ceverino, D. Daddi, E. Domínguez Sánchez, H. Espino Briones, N. Hernán Caballero, A. Koekemoer, A. M. Rodighiero, G. |
| author |
Constantin, L. |
| author_facet |
Constantin, L. Pérez González, Pablo G. Méndez Abreu, J. Huertas Company, M. Dimauro, P. Alcalde Pampliega, B. Buitrago, F. Ceverino, D. Daddi, E. Domínguez Sánchez, H. Espino Briones, N. Hernán Caballero, A. Koekemoer, A. M. Rodighiero, G. |
| author_role |
author |
| author2 |
Pérez González, Pablo G. Méndez Abreu, J. Huertas Company, M. Dimauro, P. Alcalde Pampliega, B. Buitrago, F. Ceverino, D. Daddi, E. Domínguez Sánchez, H. Espino Briones, N. Hernán Caballero, A. Koekemoer, A. M. Rodighiero, G. |
| author2_role |
author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Constantin, L. [0000-0001-6820-0015] Pérez González, P. G. [0000-0003-4528-5639] Méndez Abreu, J. [0000-0002-8766-2597] Huertas Company, M. [0000-0002-1416-8483] Dimauro, P. [0000-0001-7399-2854] Alcalde Pampliega, B. [0000-0002-4140-0428] Buitrago, F. [0000-0002-2861-9812] Caverino, D. [0000-0002-8680-248X] Daddi, E. [0000-0002-3331-9590] Domínguez Sánchez, H. [0000-0002-9013-1316] Espino Briones, N. [0000-0001-6426-3844] Hernán Caballero, A. [0000-0002-4237-5500] Koekemoer, A. M. [0000-0002-6610-2048] Rodighiero, G. [0000-0002-9415-2296] |
| dc.subject.none.fl_str_mv |
Galaxy bulges Galaxy structure Galaxy disks Galaxy spheroids Galaxy formation Galaxy evolution Galaxy quenching Galaxy stellar content Galaxy properties Galaxy ages |
| topic |
Galaxy bulges Galaxy structure Galaxy disks Galaxy spheroids Galaxy formation Galaxy evolution Galaxy quenching Galaxy stellar content Galaxy properties Galaxy ages |
| description |
Studying the resolved stellar populations of the different structural components that build massive galaxies directly unveils their assembly history. We aim at characterizing the stellar population properties of a representative sample of bulges and pure spheroids in massive galaxies (M⋆ > 1010 M⊙) in the GOODS-N field. We take advantage of the spectral and spatial information provided by SHARDS and Hubble Space Telescope data to perform the multi-image spectrophotometric decoupling of the galaxy light. We derive the spectral energy distribution separately for bulges and disks in the redshift range 0.14 < z ≤ 1 with spectral resolution R ∼ 50. Analyzing these spectral energy distributions, we find evidence of a bimodal distribution of bulge formation redshifts. We find that 33% of them present old mass-weighted ages, implying a median formation redshift ${z}_{\mathrm{form}}={6.2}_{-1.7}^{+1.5}$. They are relics of the early universe embedded in disk galaxies. A second wave, dominant in number, accounts for bulges formed at median redshift ${z}_{\mathrm{form}}={1.3}_{-0.6}^{+0.6}$. The oldest (first-wave) bulges are more compact than the youngest. Virtually all pure spheroids (i.e., those without any disk) are coetaneous with the second-wave bulges, presenting a median redshift of formation ${z}_{\mathrm{form}}={1.1}_{-0.3}^{+0.3}$. The two waves of bulge formation are distinguishable not only in terms of stellar ages but also in star formation mode. All first-wave bulges formed fast at z ∼ 6, with typical timescales around 200 Myr. A significant fraction of the second-wave bulges assembled more slowly, with star formation timescales as long as 1 Gyr. The results of this work suggest that the centers of massive disk-like galaxies actually harbor the oldest spheroids formed in the universe. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2022 2022 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://iopscience.iop.org/article/10.3847/1538-4357/abef72 http://hdl.handle.net/20.500.12666/605 |
| url |
https://iopscience.iop.org/article/10.3847/1538-4357/abef72 http://hdl.handle.net/20.500.12666/605 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
WEAVE: EXPLORANDO NUEVOS HORIZONTES CIENTIFICOS CON CARTOGRAFIADOS ESPECTROSCOPICOS info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-83204-P SIMULACIONES COSMOLOGICAS MULTIESCALA DE LA FORMACION DE GALAXIAS Y DE LAS ESTRUCTURAS A LARGA ESCALA EN EL UNIVERSO ESTUDIO DEL ENSAMBLAJE DE LAS GALAXIAS MASIVAS EN LOS ULTIMOS 13000 MILLONES DE AÑOS CON LAS EXPLORACIONES COSMOLOGICAS MAS PROFUNDAS DE GTC Y JWST (SHARDS^JWST) info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-094975-B-C21 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-093499-B-I00 |
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Attribution-NonCommercial-NoDerivatives 4.0 International © 2021. The American Astronomical Society https://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
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Attribution-NonCommercial-NoDerivatives 4.0 International © 2021. The American Astronomical Society https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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openAccess |
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application/pdf |
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IOP Science Publishing |
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IOP Science Publishing |
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reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial instname:Instituto Nacional de Técnica Aeroespacial (INTA) |
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Instituto Nacional de Técnica Aeroespacial (INTA) |
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DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial |
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DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial |
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1869408171333779456 |
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A Duality in the Origin of Bulges and Spheroidal GalaxiesConstantin, L.Pérez González, Pablo G.Méndez Abreu, J.Huertas Company, M.Dimauro, P.Alcalde Pampliega, B.Buitrago, F.Ceverino, D.Daddi, E.Domínguez Sánchez, H.Espino Briones, N.Hernán Caballero, A.Koekemoer, A. M.Rodighiero, G.Galaxy bulgesGalaxy structureGalaxy disksGalaxy spheroidsGalaxy formationGalaxy evolutionGalaxy quenchingGalaxy stellar contentGalaxy propertiesGalaxy agesStudying the resolved stellar populations of the different structural components that build massive galaxies directly unveils their assembly history. We aim at characterizing the stellar population properties of a representative sample of bulges and pure spheroids in massive galaxies (M⋆ > 1010 M⊙) in the GOODS-N field. We take advantage of the spectral and spatial information provided by SHARDS and Hubble Space Telescope data to perform the multi-image spectrophotometric decoupling of the galaxy light. We derive the spectral energy distribution separately for bulges and disks in the redshift range 0.14 < z ≤ 1 with spectral resolution R ∼ 50. Analyzing these spectral energy distributions, we find evidence of a bimodal distribution of bulge formation redshifts. We find that 33% of them present old mass-weighted ages, implying a median formation redshift ${z}_{\mathrm{form}}={6.2}_{-1.7}^{+1.5}$. They are relics of the early universe embedded in disk galaxies. A second wave, dominant in number, accounts for bulges formed at median redshift ${z}_{\mathrm{form}}={1.3}_{-0.6}^{+0.6}$. The oldest (first-wave) bulges are more compact than the youngest. Virtually all pure spheroids (i.e., those without any disk) are coetaneous with the second-wave bulges, presenting a median redshift of formation ${z}_{\mathrm{form}}={1.1}_{-0.3}^{+0.3}$. The two waves of bulge formation are distinguishable not only in terms of stellar ages but also in star formation mode. All first-wave bulges formed fast at z ∼ 6, with typical timescales around 200 Myr. A significant fraction of the second-wave bulges assembled more slowly, with star formation timescales as long as 1 Gyr. The results of this work suggest that the centers of massive disk-like galaxies actually harbor the oldest spheroids formed in the universe.We would like to thank the anonymous referee for improving the content of the manuscript. L.C. wishes to thank Cristina Cabello for the support provided while this project was devised and Michele Perna for the useful discussion. L.C. acknowledges financial support from Comunidad de Madrid under Atraccion de Talento grant 2018-T2/TIC-11612. L.C. and P.G.P.-G. acknowledge support from Spanish Ministerio de Ciencia, Innovacion y Universidades through grant PGC2018-093499-B-I00. J.M.-A. acknowledges support from the MCIU by the grant AYA2017-83204-P and the Programa Operativo FEDER Andalucia 2014-2020 in collaboration with the Andalucian Office for Economy and Knowledge. D.C. is a Ramon-Cajal Researcher and is supported by the Ministerio de Ciencia, Innovacion y Universidades (MICIU/FEDER) under research grant PGC2018-094975-C21.PeerreviewIOP Science PublishingConstantin, L. [0000-0001-6820-0015]Pérez González, P. G. [0000-0003-4528-5639]Méndez Abreu, J. [0000-0002-8766-2597]Huertas Company, M. [0000-0002-1416-8483]Dimauro, P. [0000-0001-7399-2854]Alcalde Pampliega, B. [0000-0002-4140-0428]Buitrago, F. [0000-0002-2861-9812]Caverino, D. [0000-0002-8680-248X]Daddi, E. [0000-0002-3331-9590]Domínguez Sánchez, H. [0000-0002-9013-1316]Espino Briones, N. [0000-0001-6426-3844]Hernán Caballero, A. [0000-0002-4237-5500]Koekemoer, A. M. [0000-0002-6610-2048]Rodighiero, G. [0000-0002-9415-2296]202220222021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501application/pdfhttps://iopscience.iop.org/article/10.3847/1538-4357/abef72http://hdl.handle.net/20.500.12666/605reponame:DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacialinstname:Instituto Nacional de Técnica Aeroespacial (INTA)InglésWEAVE: EXPLORANDO NUEVOS HORIZONTES CIENTIFICOS CON CARTOGRAFIADOS ESPECTROSCOPICOSinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-83204-PSIMULACIONES COSMOLOGICAS MULTIESCALA DE LA FORMACION DE GALAXIAS Y DE LAS ESTRUCTURAS A LARGA ESCALA EN EL UNIVERSOESTUDIO DEL ENSAMBLAJE DE LAS GALAXIAS MASIVAS EN LOS ULTIMOS 13000 MILLONES DE AÑOS CON LAS EXPLORACIONES COSMOLOGICAS MAS PROFUNDAS DE GTC Y JWST (SHARDS^JWST)info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-094975-B-C21info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-093499-B-I00Attribution-NonCommercial-NoDerivatives 4.0 International© 2021. The American Astronomical Societyhttps://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:digital.inta.es:20.500.12666/6052026-06-23T12:46:37Z |
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