Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years

We present the evolution of the size–mass relation since z=1 in the COSMOS region of the Deep Extragalactic VIsible Legacy Survey (DEVILS). We combine structural decomposition measurements with stellar mass estimates from fitting spectral energy distributions to multiwavelength photometry. We implem...

Descripción completa

Detalles Bibliográficos
Autores: Cook, Robin H. W., Davies, Luke J. M., Bellstedt, Sabine, Robotham, Aaron S. G., Driver, Simon P., Siudek, Malgorzata, Wolf, Christian
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/391165
Acceso en línea:http://hdl.handle.net/10261/391165
https://api.elsevier.com/content/abstract/scopus_id/105004409338
Access Level:acceso abierto
Palabra clave:Galaxies: evolution
Galaxies: photometry
Galaxies: structure
id ES_0dbb39e8cb74f8fbea7a3cf6c859fd1d
oai_identifier_str oai:digital.csic.es:10261/391165
network_acronym_str ES
network_name_str España
repository_id_str
spelling Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion yearsCook, Robin H. W.Davies, Luke J. M.Bellstedt, SabineRobotham, Aaron S. G.Driver, Simon P.Siudek, MalgorzataWolf, ChristianGalaxies: evolutionGalaxies: photometryGalaxies: structureWe present the evolution of the size–mass relation since z=1 in the COSMOS region of the Deep Extragalactic VIsible Legacy Survey (DEVILS). We combine structural decomposition measurements with stellar mass estimates from fitting spectral energy distributions to multiwavelength photometry. We implement a novel technique to fit 2D light profiles to repeated observations, removing the requirement to co-add images, which maximises the effective signal-to-noise ratio and avoids issues arising when averaging point spread functions. The sample is then separated into distinct morphological classifications, which reveals that the size–mass relation of disc-dominated galaxies shows an overall flattened slope with very little redshift evolution over 0.3 < z < 1.0. In contrast, spheroid-dominated morphologies show a much steeper relation and are generally more compact at a given stellar mass. The size–mass relations of bulge and disc components are also examined revealing that diffuse bulges occupy a similar region to disc structures, in stark contrast to the size–mass relation of compact bulges. Furthermore, the size–mass relation of discs becomes steeper in the presence of a compact bulge, whereas the relation for discs hosting a diffuse bulge is identical to that of pure-discs. The lack of evolution in disc-dominated galaxies (i.e. Reff ∝ (1+z)-0.13±0.02) is inherent to their self-similar assembly. In contrast, the size–mass relation of spheroid-dominated morphologies is rapidly evolving despite minimal growth in the individual compact bulge components, with average sizes increasing at a pace of Reff ∝ (1 + z)-3.0±0.2 and a slope that flattens with time as d log 10(Reff /d log 10(M✬) ∝ (1 + z)2.8±0.2.MS has been supported by the Polish National Agency for Academic Exchange (Bekker grant BPN/BEK/2021/1/00298/DEC/1), the European Union’s Horizon 2020 Research and Innovation programme under the Maria Sklodowska-Curie grant agreement (no. 754510).Peer reviewedOxford University PressRoyal Astronomical SocietyPolish National Agency for Academic ExchangeEuropean CommissionCook, Robin H. W. [0000-0002-3238-8359]Davies, Luke J. M. [0000-0003-3085-0922]Bellstedt, Sabine [0000-0003-4169-9738]Robotham, Aaron S. G. [0000-0003-0429-3579]Driver, Simon P. [0000-0001-9491-7327]Siudek, Malgorzata [0000-0002-2949-2155]Wolf, Christian [0000-0002-4569-016X]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252025info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/391165https://api.elsevier.com/content/abstract/scopus_id/105004409338reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/754510The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/staf575https://doi.org/10.1093/mnras/staf575Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3911652026-05-22T06:33:51Z
dc.title.none.fl_str_mv Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
title Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
spellingShingle Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
Cook, Robin H. W.
Galaxies: evolution
Galaxies: photometry
Galaxies: structure
title_short Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
title_full Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
title_fullStr Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
title_full_unstemmed Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
title_sort Deep Extragalactic VIsible Legacy Survey (DEVILS): the size–mass relation of galaxies and their components in HST-COSMOS over the last 8 billion years
dc.creator.none.fl_str_mv Cook, Robin H. W.
Davies, Luke J. M.
Bellstedt, Sabine
Robotham, Aaron S. G.
Driver, Simon P.
Siudek, Malgorzata
Wolf, Christian
author Cook, Robin H. W.
author_facet Cook, Robin H. W.
Davies, Luke J. M.
Bellstedt, Sabine
Robotham, Aaron S. G.
Driver, Simon P.
Siudek, Malgorzata
Wolf, Christian
author_role author
author2 Davies, Luke J. M.
Bellstedt, Sabine
Robotham, Aaron S. G.
Driver, Simon P.
Siudek, Malgorzata
Wolf, Christian
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Polish National Agency for Academic Exchange
European Commission
Cook, Robin H. W. [0000-0002-3238-8359]
Davies, Luke J. M. [0000-0003-3085-0922]
Bellstedt, Sabine [0000-0003-4169-9738]
Robotham, Aaron S. G. [0000-0003-0429-3579]
Driver, Simon P. [0000-0001-9491-7327]
Siudek, Malgorzata [0000-0002-2949-2155]
Wolf, Christian [0000-0002-4569-016X]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Galaxies: evolution
Galaxies: photometry
Galaxies: structure
topic Galaxies: evolution
Galaxies: photometry
Galaxies: structure
description We present the evolution of the size–mass relation since z=1 in the COSMOS region of the Deep Extragalactic VIsible Legacy Survey (DEVILS). We combine structural decomposition measurements with stellar mass estimates from fitting spectral energy distributions to multiwavelength photometry. We implement a novel technique to fit 2D light profiles to repeated observations, removing the requirement to co-add images, which maximises the effective signal-to-noise ratio and avoids issues arising when averaging point spread functions. The sample is then separated into distinct morphological classifications, which reveals that the size–mass relation of disc-dominated galaxies shows an overall flattened slope with very little redshift evolution over 0.3 < z < 1.0. In contrast, spheroid-dominated morphologies show a much steeper relation and are generally more compact at a given stellar mass. The size–mass relations of bulge and disc components are also examined revealing that diffuse bulges occupy a similar region to disc structures, in stark contrast to the size–mass relation of compact bulges. Furthermore, the size–mass relation of discs becomes steeper in the presence of a compact bulge, whereas the relation for discs hosting a diffuse bulge is identical to that of pure-discs. The lack of evolution in disc-dominated galaxies (i.e. Reff ∝ (1+z)-0.13±0.02) is inherent to their self-similar assembly. In contrast, the size–mass relation of spheroid-dominated morphologies is rapidly evolving despite minimal growth in the individual compact bulge components, with average sizes increasing at a pace of Reff ∝ (1 + z)-3.0±0.2 and a slope that flattens with time as d log 10(Reff /d log 10(M✬) ∝ (1 + z)2.8±0.2.
publishDate 2025
dc.date.none.fl_str_mv 2025
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/10261/391165
https://api.elsevier.com/content/abstract/scopus_id/105004409338
url http://hdl.handle.net/10261/391165
https://api.elsevier.com/content/abstract/scopus_id/105004409338
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/754510
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1093/mnras/staf575
https://doi.org/10.1093/mnras/staf575
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
Royal Astronomical Society
publisher.none.fl_str_mv Oxford University Press
Royal Astronomical Society
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
_version_ 1869403356047343616
score 15.811543

Similares en LA Referencia