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dc.contributor.author
de Propris, Roberto
dc.contributor.author
West, Michael J.
dc.contributor.author
Andrade-Santos, Felipe
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Ragone Figueroa, Cinthia Judith
dc.contributor.author
Rasia, Elena
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Forman, William
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Jones, Christine
dc.contributor.author
Kipper, Rain
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Borgani, Stefano
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Garcia Lambas, Diego Rodolfo
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Romashkova, Elena A.
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Patra, Kishore C.
dc.date.available
2021-04-16T20:37:22Z
dc.date.issued
2021-01
dc.identifier.citation
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
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/130248
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CD GALAXIES: KINEMATICS
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DYNAMICS
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GALAXIES: ELLIPTICAL AND LENTICULAR
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Brightest cluster galaxies: The centre can(not?) hold
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-03-26T19:35:07Z
dc.identifier.eissn
1365-2966
dc.journal.volume
500
dc.journal.number
1
dc.journal.pagination
310-318
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: de Propris, Roberto. University of Turku; Finlandia
dc.description.fil
Fil: West, Michael J.. Lowell Observatory; Estados Unidos
dc.description.fil
Fil: Andrade-Santos, Felipe. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
dc.description.fil
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
dc.description.fil
Fil: Rasia, Elena. Istituto Nazionale di Astrofisica; Italia
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Fil: Forman, William. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
dc.description.fil
Fil: Jones, Christine. Harvard-Smithsonian Center For Astrophysics; Estados Unidos
dc.description.fil
Fil: Kipper, Rain. University Of Tartu. Faculty Of Science And Technology. Tartu Observatory.; Estonia
dc.description.fil
Fil: Borgani, Stefano. Istituto Nazionale di Astrofisica; Italia
dc.description.fil
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
dc.description.fil
Fil: Romashkova, Elena A.. Massachusetts Institute Of Technology. Department Of Physics; Estados Unidos
dc.description.fil
Fil: Patra, Kishore C.. University of California; Estados Unidos
dc.journal.title
Monthly Notices of the Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/500/1/310/5936654
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/staa3286
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