Brightest cluster galaxies: The centre can(not?) hold

Autores
de Propris, Roberto; West, Michael J.; Andrade-Santos, Felipe; Ragone Figueroa, Cinthia Judith; Rasia, Elena; Forman, William; Jones, Christine; Kipper, Rain; Borgani, Stefano; Garcia Lambas, Diego Rodolfo; Romashkova, Elena A.; Patra, Kishore C.
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.
Fil: de Propris, Roberto. University of Turku; Finlandia
Fil: West, Michael J.. Lowell Observatory; Estados Unidos
Fil: Andrade-Santos, Felipe. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Ragone Figueroa, Cinthia Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Rasia, Elena. Istituto Nazionale di Astrofisica; Italia
Fil: Forman, William. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Jones, Christine. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Kipper, Rain. University Of Tartu. Faculty Of Science And Technology. Tartu Observatory.; Estonia
Fil: Borgani, Stefano. Istituto Nazionale di Astrofisica; Italia
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Romashkova, Elena A.. Massachusetts Institute Of Technology. Department Of Physics; Estados Unidos
Fil: Patra, Kishore C.. University of California; Estados Unidos
Materia
CD GALAXIES: KINEMATICS
DYNAMICS
GALAXIES: ELLIPTICAL AND LENTICULAR
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/130248
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/130248
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Brightest cluster galaxies: The centre can(not?) holdde Propris, RobertoWest, Michael J.Andrade-Santos, FelipeRagone Figueroa, Cinthia JudithRasia, ElenaForman, WilliamJones, ChristineKipper, RainBorgani, StefanoGarcia Lambas, Diego RodolfoRomashkova, Elena A.Patra, Kishore C.CD GALAXIES: KINEMATICSDYNAMICSGALAXIES: ELLIPTICAL AND LENTICULARhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.Fil: de Propris, Roberto. University of Turku; FinlandiaFil: West, Michael J.. Lowell Observatory; Estados UnidosFil: Andrade-Santos, Felipe. Harvard-Smithsonian Center For Astrophysics; Estados UnidosFil: Ragone Figueroa, Cinthia Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Rasia, Elena. Istituto Nazionale di Astrofisica; ItaliaFil: Forman, William. Harvard-Smithsonian Center For Astrophysics; Estados UnidosFil: Jones, Christine. Harvard-Smithsonian Center For Astrophysics; Estados UnidosFil: Kipper, Rain. University Of Tartu. Faculty Of Science And Technology. Tartu Observatory.; EstoniaFil: Borgani, Stefano. Istituto Nazionale di Astrofisica; ItaliaFil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; ArgentinaFil: Romashkova, Elena A.. Massachusetts Institute Of Technology. Department Of Physics; Estados UnidosFil: Patra, Kishore C.. University of California; Estados UnidosWiley Blackwell Publishing, Inc2021-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/130248de Propris, Roberto; West, Michael J.; Andrade-Santos, Felipe; Ragone Figueroa, Cinthia Judith; Rasia, Elena; et al.; Brightest cluster galaxies: The centre can(not?) hold; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 500; 1; 1-2021; 310-3180035-87111365-2966CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/500/1/310/5936654info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staa3286info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:30Zoai:ri.conicet.gov.ar:11336/130248instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:52:30.536CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Brightest cluster galaxies: The centre can(not?) hold
title Brightest cluster galaxies: The centre can(not?) hold
spellingShingle Brightest cluster galaxies: The centre can(not?) hold
de Propris, Roberto
CD GALAXIES: KINEMATICS
DYNAMICS
GALAXIES: ELLIPTICAL AND LENTICULAR
title_short Brightest cluster galaxies: The centre can(not?) hold
title_full Brightest cluster galaxies: The centre can(not?) hold
title_fullStr Brightest cluster galaxies: The centre can(not?) hold
title_full_unstemmed Brightest cluster galaxies: The centre can(not?) hold
title_sort Brightest cluster galaxies: The centre can(not?) hold
dc.creator.none.fl_str_mv de Propris, Roberto
West, Michael J.
Andrade-Santos, Felipe
Ragone Figueroa, Cinthia Judith
Rasia, Elena
Forman, William
Jones, Christine
Kipper, Rain
Borgani, Stefano
Garcia Lambas, Diego Rodolfo
Romashkova, Elena A.
Patra, Kishore C.
author de Propris, Roberto
author_facet de Propris, Roberto
West, Michael J.
Andrade-Santos, Felipe
Ragone Figueroa, Cinthia Judith
Rasia, Elena
Forman, William
Jones, Christine
Kipper, Rain
Borgani, Stefano
Garcia Lambas, Diego Rodolfo
Romashkova, Elena A.
Patra, Kishore C.
author_role author
author2 West, Michael J.
Andrade-Santos, Felipe
Ragone Figueroa, Cinthia Judith
Rasia, Elena
Forman, William
Jones, Christine
Kipper, Rain
Borgani, Stefano
Garcia Lambas, Diego Rodolfo
Romashkova, Elena A.
Patra, Kishore C.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv CD GALAXIES: KINEMATICS
DYNAMICS
GALAXIES: ELLIPTICAL AND LENTICULAR
topic CD GALAXIES: KINEMATICS
DYNAMICS
GALAXIES: ELLIPTICAL AND LENTICULAR
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.
Fil: de Propris, Roberto. University of Turku; Finlandia
Fil: West, Michael J.. Lowell Observatory; Estados Unidos
Fil: Andrade-Santos, Felipe. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Ragone Figueroa, Cinthia Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Rasia, Elena. Istituto Nazionale di Astrofisica; Italia
Fil: Forman, William. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Jones, Christine. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
Fil: Kipper, Rain. University Of Tartu. Faculty Of Science And Technology. Tartu Observatory.; Estonia
Fil: Borgani, Stefano. Istituto Nazionale di Astrofisica; Italia
Fil: Garcia Lambas, Diego Rodolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Astronomía Teórica y Experimental. Universidad Nacional de Córdoba. Observatorio Astronómico de Córdoba. Instituto de Astronomía Teórica y Experimental; Argentina
Fil: Romashkova, Elena A.. Massachusetts Institute Of Technology. Department Of Physics; Estados Unidos
Fil: Patra, Kishore C.. University of California; Estados Unidos
description We explore the persistence of the alignment of brightest cluster galaxies (BCGs) with their local environment. We find that a significant fraction of BCGs do not coincide with the centroid of the X-ray gas distribution and/or show peculiar velocities (they are not at rest with respect to the cluster mean). Despite this, we find that BCGs are generally aligned with the cluster mass distribution even when they have significant offsets from the X-ray centre and significant peculiar velocities. The large offsets are not consistent with simple theoretical models. To account for these observations BCGs must undergo mergers preferentially along their major axis, the main infall direction. Such BCGs may be oscillating within the cluster potential after having been displaced by mergers or collisions, or the dark matter halo itself may not yet be relaxed.
publishDate 2021
dc.date.none.fl_str_mv 2021-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/130248
de Propris, Roberto; West, Michael J.; Andrade-Santos, Felipe; Ragone Figueroa, Cinthia Judith; Rasia, Elena; et al.; Brightest cluster galaxies: The centre can(not?) hold; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 500; 1; 1-2021; 310-318
0035-8711
1365-2966
CONICET Digital
CONICET
url http://hdl.handle.net/11336/130248
identifier_str_mv de Propris, Roberto; West, Michael J.; Andrade-Santos, Felipe; Ragone Figueroa, Cinthia Judith; Rasia, Elena; et al.; Brightest cluster galaxies: The centre can(not?) hold; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 500; 1; 1-2021; 310-318
0035-8711
1365-2966
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/500/1/310/5936654
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/staa3286
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842269163364548608
score 13.13397

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