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dc.contributor.author
Aceña, Andrés Esteban
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Barranco, Juan
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Bernal, Argelia
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López, Ericson
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Llerena, Mario
dc.date.available
2023-09-20T17:16:20Z
dc.date.issued
2021-12
dc.identifier.citation
Aceña, Andrés Esteban; Barranco, Juan; Bernal, Argelia; López, Ericson; Llerena, Mario; A further analysis for galactic dark matter halos with pressure; Cornell University; ArXiv.org; 12-2021; 1-21
dc.identifier.issn
2331-8422
dc.identifier.uri
http://hdl.handle.net/11336/212383
dc.description.abstract
Spherically symmetric and static dark matter halos in hydrostatic equilibrium demand that dark matter should have an effective pressure that compensates the gravitational force of the mass of the halo. An effective equation of state can be obtained for each rotational velocity profile of the stars in galaxies. In this work, we study one of this dark matter equation of state obtained for the Universal Velocity Profile and analyze the properties of the self-gravitating structures that emerges from this equation of state. The resulting configurations explaining the observed rotational speeds are found to be unstable. We conclude that either the halo is not in hydrostatic equilibrium,or it is non spherically symmetric, or it is not static if the Universal Velocity profile should be valid to fit the rotational velocity curve of the galaxies.
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application/pdf
dc.language.iso
eng
dc.publisher
Cornell University
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DARK MATTER
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GALACTIC HALO
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EQUATION OF STAT
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STABILITY
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Otras Ciencias Físicas
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
A further analysis for galactic dark matter halos with pressure
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-09-14T17:37:38Z
dc.journal.pagination
1-21
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Ithaca
dc.description.fil
Fil: Aceña, Andrés Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Interdisciplinario de Ciencias Básicas. - Universidad Nacional de Cuyo. Instituto Interdisciplinario de Ciencias Básicas; Argentina
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Fil: Barranco, Juan. Universidad de Guanajuato; México
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Fil: Bernal, Argelia. Universidad de Guanajuato; México
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Fil: López, Ericson. Escuela Politécnica Nacional; Ecuador
dc.description.fil
Fil: Llerena, Mario. Universidad de La Serena; Chile
dc.journal.title
ArXiv.org
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2112.05865
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