Virial theorem and gravitational equilibrium with a cosmological constant

Starting from the Newtonian limit of Einstein's equations in the presence of a positive cosmological constant, we obtain a new version of the virial theorem and a condition for gravitational equilibrium. Such a condition takes the form ρ and gt; λρvac, where ρ is the mean density of an astrophy...

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Autores:
Nowakowski, Marek
Sanabria, Juan Carlos
García, Alejandro
Tipo de recurso:
Article of journal
Fecha de publicación:
2001
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/70649
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/70649
http://bdigital.unal.edu.co/35119/
Palabra clave:
Constante cosmológica
densidad
galaxias
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Nowakowski, Marek78595d7d-3f0d-4029-8eb0-4e9352fa960f300Sanabria, Juan Carlos1d3c58ce-0da5-4877-82eb-746f6857aed6300García, Alejandro0d239e67-9f54-4936-bfa2-9070f30eca763002019-07-03T14:06:42Z2019-07-03T14:06:42Z2001https://repositorio.unal.edu.co/handle/unal/70649http://bdigital.unal.edu.co/35119/Starting from the Newtonian limit of Einstein's equations in the presence of a positive cosmological constant, we obtain a new version of the virial theorem and a condition for gravitational equilibrium. Such a condition takes the form ρ and gt; λρvac, where ρ is the mean density of an astrophysical system (e.g. galaxy, galaxy cluster or supercluster), λ is a quantity which depends only on the shape of the system, and ρvac is the vacuum density. We conclude that gravitational stability might be infiuenced by the presence of Λ depending strongly on the shape of the system.application/pdfspaUniversidad Nacional de Colombia, Bogotáhttp://revistas.unal.edu.co/index.php/momento/article/view/35358Universidad Nacional de Colombia Revistas electrónicas UN MOMENTO - Revista de FísicaMOMENTO - Revista de FísicaMOMENTO - Revista de Física; núm. 23 (2001); 21-34 0121-4470Nowakowski, Marek and Sanabria, Juan Carlos and García, Alejandro (2001) Virial theorem and gravitational equilibrium with a cosmological constant. MOMENTO - Revista de Física; núm. 23 (2001); 21-34 0121-4470 .Virial theorem and gravitational equilibrium with a cosmological constantArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTConstante cosmológicadensidadgalaxiasORIGINAL35358-138434-1-PB.pdfapplication/pdf3167908https://repositorio.unal.edu.co/bitstream/unal/70649/1/35358-138434-1-PB.pdf1f40a4f150ca8f704a5dc05307e4354dMD51THUMBNAIL35358-138434-1-PB.pdf.jpg35358-138434-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg6510https://repositorio.unal.edu.co/bitstream/unal/70649/2/35358-138434-1-PB.pdf.jpg882a56ba9eebb4e0f0a0b0c919c49158MD52unal/70649oai:repositorio.unal.edu.co:unal/706492023-06-14 23:03:42.252Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Virial theorem and gravitational equilibrium with a cosmological constant
title Virial theorem and gravitational equilibrium with a cosmological constant
spellingShingle Virial theorem and gravitational equilibrium with a cosmological constant
Constante cosmológica
densidad
galaxias
title_short Virial theorem and gravitational equilibrium with a cosmological constant
title_full Virial theorem and gravitational equilibrium with a cosmological constant
title_fullStr Virial theorem and gravitational equilibrium with a cosmological constant
title_full_unstemmed Virial theorem and gravitational equilibrium with a cosmological constant
title_sort Virial theorem and gravitational equilibrium with a cosmological constant
dc.creator.fl_str_mv Nowakowski, Marek
Sanabria, Juan Carlos
García, Alejandro
dc.contributor.author.spa.fl_str_mv Nowakowski, Marek
Sanabria, Juan Carlos
García, Alejandro
dc.subject.proposal.spa.fl_str_mv Constante cosmológica
densidad
galaxias
topic Constante cosmológica
densidad
galaxias
description Starting from the Newtonian limit of Einstein's equations in the presence of a positive cosmological constant, we obtain a new version of the virial theorem and a condition for gravitational equilibrium. Such a condition takes the form ρ and gt; λρvac, where ρ is the mean density of an astrophysical system (e.g. galaxy, galaxy cluster or supercluster), λ is a quantity which depends only on the shape of the system, and ρvac is the vacuum density. We conclude that gravitational stability might be infiuenced by the presence of Λ depending strongly on the shape of the system.
publishDate 2001
dc.date.issued.spa.fl_str_mv 2001
dc.date.accessioned.spa.fl_str_mv 2019-07-03T14:06:42Z
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url https://repositorio.unal.edu.co/handle/unal/70649
http://bdigital.unal.edu.co/35119/
dc.language.iso.spa.fl_str_mv spa
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dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/momento/article/view/35358
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN MOMENTO - Revista de Física
MOMENTO - Revista de Física
dc.relation.ispartofseries.none.fl_str_mv MOMENTO - Revista de Física; núm. 23 (2001); 21-34 0121-4470
dc.relation.references.spa.fl_str_mv Nowakowski, Marek and Sanabria, Juan Carlos and García, Alejandro (2001) Virial theorem and gravitational equilibrium with a cosmological constant. MOMENTO - Revista de Física; núm. 23 (2001); 21-34 0121-4470 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
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dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
http://creativecommons.org/licenses/by-nc/4.0/
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eu_rights_str_mv openAccess
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia, Bogotá
institution Universidad Nacional de Colombia
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