The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies

Using 324 numerically modelled galaxy clusters, we investigate the radial and galaxy-halo alignment of dark matter subhaloes and satellite galaxies orbiting within and around them. We find that radial alignment depends on distance to the centre of the galaxy cluster but appears independent of the dy...

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Detalles Bibliográficos
Autores: Knebe, Alexander, Cui, Weiguang, Hoffmann, Kai, Mostoghiu, Robert, Gámez Marín, Matías, Pearce, Frazer R., Power, Chris, Haggar, Roan, De Petris, Marco
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/720906
Acceso en línea:http://hdl.handle.net/10486/720906
https://dx.doi.org/10.1093/mnras/staa1407
Access Level:acceso abierto
Palabra clave:cosmology: Theory
galaxies: clusters: general
galaxies: formation
galaxies: haloes
large-scale structure of the universe
methods: numerical
Física
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spelling The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxiesKnebe, AlexanderCui, WeiguangHoffmann, KaiMostoghiu, RobertGámez Marín, MatíasPearce, Frazer R.Power, ChrisHaggar, RoanDe Petris, Marcocosmology: Theorygalaxies: clusters: generalgalaxies: formationgalaxies: haloeslarge-scale structure of the universemethods: numericalFísicaUsing 324 numerically modelled galaxy clusters, we investigate the radial and galaxy-halo alignment of dark matter subhaloes and satellite galaxies orbiting within and around them. We find that radial alignment depends on distance to the centre of the galaxy cluster but appears independent of the dynamical state of the central host cluster. Furthermore, we cannot find a relation between radial alignment of the halo or galaxy shape with its own mass. We report that backsplash galaxies, i.e. objects that have already passed through the cluster radius but are now located in the outskirts, show a stronger radial alignment than infalling objects. We further find that there exists a population of well radially aligned objects passing very close to the central cluster's centre that were found to be on highly radial orbitThis work has been made possible by the ‘The Three Hundred’ collaboration.12 The project has received financial support from the European Union’s H2020 Marie Skłodowska-Curie Actions grant number 734374, i.e. the LACEGAL project. AK and RM are supported by the Ministerio de Ciencia, Innovación y Universidades (MICIU/FEDER) through grant number PGC2018-094975-C21. AK further acknowledges support from the Spanish Red Consolider MultiDark FPA2017-90566-REDC. WC acknowledge supported from the European Research Council under grant number 670193. RH acknowledges support from STFC through a studentship. MDP is supported by funding from Sapienza Università di Roma – Progetti di Ricerca Medi 2019, prot. RM11916B7540DD8D. KH was supported by SNF Sinergia CRSII5_173716. CP acknowledges support of the Australian Research Council Centre of Excellence for All Sky Astrophysics in 3D, CE170100013Oxford University PressDepartamento de Física TeóricaFacultad de Ciencias20202020-05-21research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/720906https://dx.doi.org/10.1093/mnras/staa1407reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 734374open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7209062026-06-23T12:46:27Z
dc.title.none.fl_str_mv The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
title The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
spellingShingle The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
Knebe, Alexander
cosmology: Theory
galaxies: clusters: general
galaxies: formation
galaxies: haloes
large-scale structure of the universe
methods: numerical
Física
title_short The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
title_full The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
title_fullStr The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
title_full_unstemmed The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
title_sort The Three Hundred project: Shapes and radial alignment of satellite, infalling, and backsplash galaxies
dc.creator.none.fl_str_mv Knebe, Alexander
Cui, Weiguang
Hoffmann, Kai
Mostoghiu, Robert
Gámez Marín, Matías
Pearce, Frazer R.
Power, Chris
Haggar, Roan
De Petris, Marco
author Knebe, Alexander
author_facet Knebe, Alexander
Cui, Weiguang
Hoffmann, Kai
Mostoghiu, Robert
Gámez Marín, Matías
Pearce, Frazer R.
Power, Chris
Haggar, Roan
De Petris, Marco
author_role author
author2 Cui, Weiguang
Hoffmann, Kai
Mostoghiu, Robert
Gámez Marín, Matías
Pearce, Frazer R.
Power, Chris
Haggar, Roan
De Petris, Marco
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv cosmology: Theory
galaxies: clusters: general
galaxies: formation
galaxies: haloes
large-scale structure of the universe
methods: numerical
Física
topic cosmology: Theory
galaxies: clusters: general
galaxies: formation
galaxies: haloes
large-scale structure of the universe
methods: numerical
Física
description Using 324 numerically modelled galaxy clusters, we investigate the radial and galaxy-halo alignment of dark matter subhaloes and satellite galaxies orbiting within and around them. We find that radial alignment depends on distance to the centre of the galaxy cluster but appears independent of the dynamical state of the central host cluster. Furthermore, we cannot find a relation between radial alignment of the halo or galaxy shape with its own mass. We report that backsplash galaxies, i.e. objects that have already passed through the cluster radius but are now located in the outskirts, show a stronger radial alignment than infalling objects. We further find that there exists a population of well radially aligned objects passing very close to the central cluster's centre that were found to be on highly radial orbit
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-05-21
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/720906
https://dx.doi.org/10.1093/mnras/staa1407
url http://hdl.handle.net/10486/720906
https://dx.doi.org/10.1093/mnras/staa1407
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission http://dx.doi.org/10.13039/501100000780 Horizon 2020 Framework Programme 734374
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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