Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation

Detalhes bibliográficos
Autor(a) principal: Freitas, Rodrigo Flores de
Data de Publicação: 2022
Outros Autores: Chies-Santos, Ana Leonor, Furlanetto, Cristina, de Rossi, María Emilia, Ferreira, Leonardo de Albernaz, Zenocratti, Lucas, Alamo-Martínez, Karla A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/237294
Resumo: Relic galaxies are massive compact quiescent galaxies that formed at high-redshift and remained almost unchanged since then. In this work, we search for analogues to relic galaxies in the TNG50 cosmological simulations to understand relic formation and test the ability of TNG50 to reproduce such rare objects. Using stellar mass, age, radius, quiescence, and stellar assembly criteria, we find five subhaloes in TNG50 that could be potential relic analogues. We compare their properties with other constraints imposed by a sample of 13 observed relic galaxies. We find one analogue in TNG50 that simultaneously satisfies most of the available observational constraints, such as metallicity and morphology. It also shows similarities to the confirmed relic NGC 1277, regarding environment and dark matter fraction. By taking into account a degree of relicness, a second relic analogue may also be considered. However, the central parts of the brightness and density profiles of the analogues are less steep than that of real relic galaxies, possibly due to limited numerical resolution. We identify two formation pathways of relic analogues in TNG50 depending on their environment: they either have their remaining gas stripped during the infall into a cluster at z 1.2 or consume it before z > 1.5. They are then deprived of significant star formation, leaving their stellar populations almost unaltered during the last 9 Gyr. We also find that the analogue progenitors at z ∼ 4 inhabit more massive haloes than progenitors of quiescent galaxies with similar stellar mass at z ∼ 0.
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spelling Freitas, Rodrigo Flores deChies-Santos, Ana LeonorFurlanetto, Cristinade Rossi, María EmiliaFerreira, Leonardo de AlbernazZenocratti, LucasAlamo-Martínez, Karla A.2022-04-15T04:42:54Z20220035-8711http://hdl.handle.net/10183/237294001139707Relic galaxies are massive compact quiescent galaxies that formed at high-redshift and remained almost unchanged since then. In this work, we search for analogues to relic galaxies in the TNG50 cosmological simulations to understand relic formation and test the ability of TNG50 to reproduce such rare objects. Using stellar mass, age, radius, quiescence, and stellar assembly criteria, we find five subhaloes in TNG50 that could be potential relic analogues. We compare their properties with other constraints imposed by a sample of 13 observed relic galaxies. We find one analogue in TNG50 that simultaneously satisfies most of the available observational constraints, such as metallicity and morphology. It also shows similarities to the confirmed relic NGC 1277, regarding environment and dark matter fraction. By taking into account a degree of relicness, a second relic analogue may also be considered. However, the central parts of the brightness and density profiles of the analogues are less steep than that of real relic galaxies, possibly due to limited numerical resolution. We identify two formation pathways of relic analogues in TNG50 depending on their environment: they either have their remaining gas stripped during the infall into a cluster at z 1.2 or consume it before z > 1.5. They are then deprived of significant star formation, leaving their stellar populations almost unaltered during the last 9 Gyr. We also find that the analogue progenitors at z ∼ 4 inhabit more massive haloes than progenitors of quiescent galaxies with similar stellar mass at z ∼ 0.application/pdfengMonthly notices of the royal astronomical society. Oxford. Vol. 512, no. 1 (May 2022), p. 245-264Galaxias elipticasEvolucao galaticaFormacao de galaxiasGalaxies: elliptical and lenticularGalaxies: evolutionGalaxies: formationRelic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulationEstrangeiroinfo: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:UFRGSTEXT001139707.pdf.txt001139707.pdf.txtExtracted Texttext/plain112813http://www.lume.ufrgs.br/bitstream/10183/237294/2/001139707.pdf.txt56da1ac4ebdb779413ab63cf904e1a0bMD52ORIGINAL001139707.pdfTexto completo (inglês)application/pdf4096617http://www.lume.ufrgs.br/bitstream/10183/237294/1/001139707.pdf76b7c6cfe1d4ae4723ff9bcaf54d081dMD5110183/2372942023-06-17 03:38:26.218409oai:www.lume.ufrgs.br:10183/237294Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-17T06:38:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
title Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
spellingShingle Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
Freitas, Rodrigo Flores de
Galaxias elipticas
Evolucao galatica
Formacao de galaxias
Galaxies: elliptical and lenticular
Galaxies: evolution
Galaxies: formation
title_short Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
title_full Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
title_fullStr Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
title_full_unstemmed Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
title_sort Relic galaxy analogues in TNG50 simulation : the formation pathways of surviving red nuggets in a cosmological simulation
author Freitas, Rodrigo Flores de
author_facet Freitas, Rodrigo Flores de
Chies-Santos, Ana Leonor
Furlanetto, Cristina
de Rossi, María Emilia
Ferreira, Leonardo de Albernaz
Zenocratti, Lucas
Alamo-Martínez, Karla A.
author_role author
author2 Chies-Santos, Ana Leonor
Furlanetto, Cristina
de Rossi, María Emilia
Ferreira, Leonardo de Albernaz
Zenocratti, Lucas
Alamo-Martínez, Karla A.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Freitas, Rodrigo Flores de
Chies-Santos, Ana Leonor
Furlanetto, Cristina
de Rossi, María Emilia
Ferreira, Leonardo de Albernaz
Zenocratti, Lucas
Alamo-Martínez, Karla A.
dc.subject.por.fl_str_mv Galaxias elipticas
Evolucao galatica
Formacao de galaxias
topic Galaxias elipticas
Evolucao galatica
Formacao de galaxias
Galaxies: elliptical and lenticular
Galaxies: evolution
Galaxies: formation
dc.subject.eng.fl_str_mv Galaxies: elliptical and lenticular
Galaxies: evolution
Galaxies: formation
description Relic galaxies are massive compact quiescent galaxies that formed at high-redshift and remained almost unchanged since then. In this work, we search for analogues to relic galaxies in the TNG50 cosmological simulations to understand relic formation and test the ability of TNG50 to reproduce such rare objects. Using stellar mass, age, radius, quiescence, and stellar assembly criteria, we find five subhaloes in TNG50 that could be potential relic analogues. We compare their properties with other constraints imposed by a sample of 13 observed relic galaxies. We find one analogue in TNG50 that simultaneously satisfies most of the available observational constraints, such as metallicity and morphology. It also shows similarities to the confirmed relic NGC 1277, regarding environment and dark matter fraction. By taking into account a degree of relicness, a second relic analogue may also be considered. However, the central parts of the brightness and density profiles of the analogues are less steep than that of real relic galaxies, possibly due to limited numerical resolution. We identify two formation pathways of relic analogues in TNG50 depending on their environment: they either have their remaining gas stripped during the infall into a cluster at z 1.2 or consume it before z > 1.5. They are then deprived of significant star formation, leaving their stellar populations almost unaltered during the last 9 Gyr. We also find that the analogue progenitors at z ∼ 4 inhabit more massive haloes than progenitors of quiescent galaxies with similar stellar mass at z ∼ 0.
publishDate 2022
dc.date.accessioned.fl_str_mv 2022-04-15T04:42:54Z
dc.date.issued.fl_str_mv 2022
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.issn.pt_BR.fl_str_mv 0035-8711
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url http://hdl.handle.net/10183/237294
dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Monthly notices of the royal astronomical society. Oxford. Vol. 512, no. 1 (May 2022), p. 245-264
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eu_rights_str_mv openAccess
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reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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